Cambridge Audio Stereo Receiver 551R User Manual

AV receiver  
User’s manual  
2
azur  
551R  
Your music + our passion  
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azur 551R  
Introduction  
Before connecting  
Thank you for purchasing this 551R AV Receiver. We are confident that you  
will enjoy many years of listening pleasure from it. Like all Cambridge Audio  
products the 551R adheres to our three core principles – stunning  
performance, ease of use and incredible value.  
The process of setting up the 551R is first to make all the connections to your  
speakers and source equipment and then set the unit up via its On-Screen  
Display (OSD) as there are various settings and adjustments that need to be  
made before the 551R can be used.  
As such, the seven 60W audiophile grade fully discrete amplifiers are kept as  
separate as possible from the processing and input stages and feature a  
large power supply with a low flux toroidal transformer. This careful design of  
the amplifier stages ensure that the 551R can reproduce the dynamics and  
scale required for modern movie soundtracks whilst also being able to  
However before you actually decide which connections to make or perform  
any adjustments it is strongly advised that you read through the ‘551R  
setup’ section of this manual first, starting on page 14.  
A lot of explanation is included that will help you to choose the right  
connection types for both your sources and TV.  
reproduce  
multichannel music sources.  
a
genuinely musical performance with either stereo or  
A full range of HDMI, digital and analogue inputs are fitted. These allow the  
connection of suitably equipped Blu-ray players, DVD players, satellite/set-  
top boxes and games consoles for decoding into stereo, stereo + sub or  
various digital surround formats.  
The latest formats are supported including Dolby True HD, Dolby Digital Plus,  
DTS-HD Master Audio and DTS-HD High Resolution Audio in 5.1 or 7.1  
variants. In particular support for the true lossless Dolby True HD and DTS-  
HD Master Audio formats provides unprecedented audio fidelity from Blu-ray  
discs.  
Various HDMI 1.4 features are supported including 3D TV and deep-colour  
pass-through from suitable sources and Audio Return from TVs with this  
feature.  
The 551R is also capable of decoding encoded analogue or digital stereo  
sources in Dolby Pro Logic® II or IIx and DTS Neo:6, for a convincing and  
effective surround experience from a matrix encoded stereo source.  
Sophisticated post-processing of 5.1 digital material is also possible with  
PLIIx or DTS Neo:6 to turn these formats into 7.1.  
Conventional analogue stereo inputs allow the connection of audiophile CD  
players and the like, and an Analogue Stereo Direct mode with no processing  
ensures the very best possible stereo reproduction for these.  
The 551R also carries a 5.1 / 7.1 channel analogue input. This feature allows  
for the connection of a DVD-Audio or SACD player equipped with a 5.1 output  
and is compatible with any future external 7.1 audio formats.  
As well as the full complement of audio inputs, the 551R performs  
Composite, S-Video, Component Video and HDMI switching with transcoding  
and scaling (up-converting) of all analogue video to HDMI.  
An RS232 port and IR Emitter In also make it easy to integrate the 551R into  
a Custom Install situation.  
All this proprietary engineering is housed within our low resonance,  
acoustically damped chassis. An Azur Navigator remote control is also  
provided, giving full remote control of your AV receiver in an attractive and  
easy to use handset.  
Remember your 551R can only be as good as the system it is connected to.  
Please do not compromise on your source equipment, speaker package or  
video and audio cabling. Naturally we particularly recommend our Blu-ray  
players, digital and analogue iPod docks, Network and CD players from the  
Cambridge Audio Azur range, which have been designed to the same  
exacting standards as our receivers. Your dealer can also supply excellent  
quality Cambridge Audio interconnects to ensure your system realises its full  
potential.  
Thanks for taking the time to read this manual, we do recommend you keep  
it for future reference.  
Matthew Bramble  
Cambridge Audio Technical Director  
and the 551R design team  
3
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Important safety instructions  
For your own safety please read the following important safety instructions  
carefully before attempting to connect this unit to the mains power supply.  
They will also enable you to get the best performance from and prolong the  
life of the unit:  
1. Read these instructions.  
2. Keep these instructions.  
3. Heed all warnings.  
The lightning flash with the arrowhead symbol within an equilateral triangle  
is intended to alert the user to the presence of un-insulated ‘dangerous  
voltage’ within the product’s enclosure that may be of sufficient magnitude  
to constitute a risk of electric shock to persons.  
4. Follow all instructions.  
The exclamation point within an equilateral triangle is intended to alert the  
user to the presence of important operating and maintenance instructions in  
the service literature relevant to this appliance.  
5. Do not use this apparatus near water.  
6. Clean only with a dry cloth.  
The symbol on this product indicates that it is of CLASS II (double  
insulated) construction.  
7. Do not block any ventilation openings. Install in accordance with the  
manufacturer's instructions.  
WEEE symbol  
8. Do not install near any heat sources such as radiators, heat registers,  
stoves, or other apparatus (including amplifiers) that produce heat.  
The crossed-out wheeled bin is the European Union symbol for  
indicating separate collection for electrical and electronic  
equipment. This product contains electrical and electronic  
equipment which should be reused, recycled or recovered and  
should not be disposed of with unsorted regular waste. Please  
return the unit or contact the authorised dealer from whom you purchased  
this product for more information.  
9. Do not defeat the safety purpose of the polarized or grounding-type plug.  
A polarized plug has two blades with one wider than the other. A  
grounding-type plug has two blades and a third grounding prong. The  
wide blade or the third prong are provided for your safety. If the provided  
plug does not fit into your outlet, consult an electrician for replacement  
of the obsolete outlet.  
10. Protect the power cord from being walked on or pinched, particularly at  
plugs, convenience receptacles and the point where they exit from the  
apparatus.  
CE mark  
This product complies with European Low Voltage (2006/95/EC),  
Electromagnetic  
Compatibility  
(2004/108/EC)  
and  
Environmentally-friendly design of Energy-related Products (2009/125/EC)  
Directives when used and installed according to this instruction manual. For  
continued compliance only Cambridge Audio accessories should be used  
with this product and servicing must be referred to qualified service  
personnel.  
11. Only use attachments/accessories specified by the manufacturer.  
12. Use with only the cart, stand, tripod, bracket, or table  
specified by the manufacturer, or sold with the apparatus.  
When a cart is used, use caution when moving the cart/  
apparatus combination to avoid injury from tip-over.  
13. Unplug this apparatus during lightning storms or when unused for long  
periods of time.  
C-Tick mark  
This product meets the Australian Communications Authority’s  
Radio communications and EMC requirements.  
14. Refer all servicing to qualified service personnel. Servicing is required  
when the apparatus has been damaged in any way, such as the power-  
supply cord or plug having been damaged, liquid has been spilled or  
objects have fallen into the apparatus, the apparatus has been exposed  
to rain or moisture, does not operate normally, or has been dropped.  
Gost-R Mark  
This product meets Russian electronic safety approvals.  
FCC regulations  
WARNING  
NOTE: THE MANUFACTURER IS NOT RESPONSIBLE FOR ANY RADIO OR TV  
INTERFERENCE CAUSED BY UNAUTHORIZED MODIFICATIONS TO THIS  
EQUIPMENT. SUCH MODIFICATIONS COULD VOID THE USER AUTHORITY TO  
OPERATE THE EQUIPMENT.  
– To reduce the risk of fire or electric shock, do not expose this unit to rain  
or moisture.  
– Batteries (battery pack or batteries installed) shall not be exposed to  
excessive heat such as sunshine, fire or the like.  
This equipment has been tested and found to comply with the  
limits for a Class B digital device, pursuant to Part 15 of the FCC  
Rules. These limits are designed to provide reasonable protection  
against harmful interference in a residential installation. This equipment  
generates, uses and can radiate radio frequency energy and, if not installed  
and used in accordance with the instructions, may cause harmful  
interference to radio communications. However, there is no guarantee that  
interference will not occur in a particular installation.  
The unit must be installed in a manner that makes disconnection of the  
mains plug from the mains socket outlet (or appliance connector from the  
rear of the unit) possible. Where the mains plug is used as the disconnect  
device, the disconnect device shall remain readily operable. Only use the  
mains cord supplied with this unit.  
Please ensure there is ample ventilation (at least 10cm clearance all round).  
Do not put any objects on top of this unit. Do not situate it on a rug or other  
soft surface and do not obstruct any air inlets or outlet grilles. Do not cover  
the ventilation grilles with items such as newspapers, tablecloths, curtains,  
etc.  
If this equipment does cause harmful interference to radio or television  
reception, which can be determined by turning the equipment off and on, the  
user is encouraged to try to correct the interference by one or more of the  
following measures:  
This unit must not be used near water or exposed to dripping or splashing  
water or other liquids. No objects filled with liquid, such as vases, shall be  
placed on the unit.  
- Re-orient or relocate the receiving antenna.  
- Increase the separation between the equipment and receiver.  
- Connect the equipment into an outlet on a circuit different from that to  
which the receiver is connected.  
- Consult the dealer or an experienced radio/TV technician for help.  
4
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azur 551R  
Limited warranty  
Cambridge Audio warrants this product to be free from defects in materials  
and workmanship (subject to the terms set forth below). Cambridge Audio will  
repair or replace (at Cambridge Audio's option) this product or any defective  
parts in this product. Warranty periods may vary from country to country. If in  
doubt consult your dealer and ensure that you retain proof of purchase.  
Ventilation  
IMPORTANT – The unit will become hot when in use. Do not stack multiple units  
on top of each other. Do not place in an enclosed area such as a bookcase or in a  
cabinet without sufficient ventilation.  
Ensure that small objects do not fall through any ventilation grille. If this happens,  
switch off immediately, disconnect from the mains supply and contact your dealer  
for advice.  
To obtain warranty service, please contact the Cambridge Audio authorised  
dealer from which you purchased this product. If your dealer is not equipped  
to perform the repair of your Cambridge Audio product, it can be returned by  
your dealer to Cambridge Audio or an authorised Cambridge Audio service  
agent. You will need to ship this product in either its original packaging or  
packaging affording an equal degree of protection.  
Positioning  
Choose the installation location carefully. Avoid placing it in direct sunlight or  
close to a source of heat. No naked flame sources, such as lighted candles,  
should be placed on the unit. Also avoid locations subject to vibration and  
excessive dust, cold or moisture. The unit can be used in a moderate climate.  
Proof of purchase in the form of a bill of sale or receipted invoice, which is  
evidence that this product is within the warranty period, must be presented  
to obtain warranty service.  
This unit must be installed on a sturdy, level surface. Do not place in a sealed  
area such as a bookcase or in a cabinet. Any space open at the back (such  
as a dedicated equipment rack) is fine, however. Do not place the unit on an  
unstable surface or shelf. The unit may fall, causing serious injury to a child  
or adult as well as serious damage to the product. Do not place other  
equipment on top of the unit.  
This Warranty is invalid if (a) the factory-applied serial number has been  
altered or removed from this product or (b) this product was not purchased  
from a Cambridge Audio authorised dealer. You may call Cambridge Audio or  
your local country Cambridge Audio distributor to confirm that you have an  
unaltered serial number and/or you purchased from a Cambridge Audio  
authorised dealer.  
Due to stray magnetic fields, turntables or CRT TVs should not be located  
nearby due to possible interference.  
This Warranty does not cover cosmetic damage or damage due to acts of  
God, accident, misuse, abuse, negligence, commercial use, or modification  
of, or to any part of, the product. This Warranty does not cover damage due  
to improper operation, maintenance or installation, or attempted repair by  
anyone other than Cambridge Audio or a Cambridge Audio dealer, or  
authorised service agent which is authorised to do Cambridge Audio warranty  
work. Any unauthorised repairs will void this Warranty. This Warranty does not  
cover products sold AS IS or WITH ALL FAULTS.  
Electronic audio components have a running in period of around a week (if  
used several hours per day). This will allow the new components to settle  
down and the sonic properties will improve over this time.  
Power sources  
The unit should be operated only from the type of power source indicated on  
the marking label. If you are not sure of the type of power-supply to your  
home, consult your product dealer or local power company.  
REPAIRS OR REPLACEMENTS AS PROVIDED UNDER THIS WARRANTY ARE  
THE EXCLUSIVE REMEDY OF THE CONSUMER. CAMBRIDGE AUDIO SHALL  
NOT BE LIABLE FOR ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES FOR  
BREACH OF ANY EXPRESS OR IMPLIED WARRANTY IN THIS PRODUCT.  
EXCEPT TO THE EXTENT PROHIBITED BY LAW, THIS WARRANTY IS EXCLUSIVE  
AND IN LIEU OF ALL OTHER EXPRESS AND IMPLIED WARRANTIES  
WHATSOEVER INCLUDING, BUT NOT LIMITED TO, THE WARRANTY OF  
MERCHANTABILITY AND FITNESS FOR A PRACTICAL PURPOSE.  
This unit has been designed to be left in Standby mode when not in use as  
this will increase the life of the unit (this is true with all electronic equipment).  
To turn the unit off, switch off at the rear panel. If you do not intend to use  
this unit for a long period of time, unplug it from the mains socket.  
Some countries and US states do not allow the exclusion or limitation of  
incidental or consequential damages or implied warranties so the above  
exclusions may not apply to you. This Warranty gives you specific legal rights,  
and you may have other statutory rights, which vary from state to state or  
country to country.  
Overloading  
Do not overload wall outlets or extension cords as this can result in a risk of  
fire or electric shock. Overloaded AC outlets, extension cords, frayed power  
cords, damaged or cracked wire insulation and broken plugs are dangerous.  
They may result in a shock or fire hazard.  
For any service, in or out of warranty, please contact your dealer.  
Be sure to insert each power cord securely. To prevent hum and noise, do not  
bundle the interconnect leads with the power cord or speaker leads.  
Cleaning  
To clean the unit, wipe its case with a dry, lint-free cloth. Do not use any  
cleaning fluids containing alcohol, ammonia or abrasives. Do not spray an  
aerosol at or near the unit.  
Battery disposal  
Batteries may contain substances harmful to the environment. Please  
dispose of any discharged batteries with due consideration and in  
accordance with local environmental/electronic recycling guidelines.  
Plug Fitting Instructions (UK Only)  
The cord supplied with this appliance is factory fitted with a UK mains plug fitted  
with a 5 amp fuse inside. If it is necessary to change the fuse, it is important that  
a 5 amp one is used. If the plug needs to be changed because it is not suitable for  
your socket, or becomes damaged, it should be cut off and an appropriate plug  
fitted following the wiring instructions below. The plug must then be disposed of  
safely, as insertion into a mains socket is likely to cause an electrical hazard.  
Should it be necessary to fit a 3-pin BS mains plug to the power cord the wires  
should be fitted as shown in this diagram. The colours of the wires in the mains  
lead of this appliance may not correspond with the coloured markings identifying  
the terminals in your plug. Connect them as follows:  
Loudspeakers  
Before making any connections to loudspeakers, make sure all power is  
turned off and only use suitable interconnects.  
Servicing  
These units are not user serviceable. Never attempt to repair, disassemble or  
reconstruct the unit if there seems to be a problem. A serious electric shock  
could result if this precautionary measure is ignored. In the event of a  
problem or failure, please contact your dealer.  
The wire which is coloured BLUE must be  
connected to the terminal which is marked  
with the letter ‘N’ or coloured BLACK.  
The wire which is coloured BROWN must be  
connected to the terminal which is marked  
with the letter ‘Lor coloured RED.  
IMPORTANT  
If the unit is run at a very high level, a sensor will detect a temperature rise and  
show "PROTECTION OVERLOAD" on the display. The unit will then go into Standby  
mode. It cannot be switched on again until the temperature has fallen to a more  
normal level.  
The wire which is coloured GREEN/YELLOW  
must be connected to the terminal which is  
marked with the letter ‘E’ or coloured GREEN.  
If your model does not have an earth wire, then disregard this instruction.  
If a standard 13 amp (BS 1363) plug is used, a 5 amp fuse must be fitted, or if any  
other type of plug is used a 5 amp fuse must be fitted, either in the plug or adaptor,  
or on the distribution board.  
5
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Front panel controls  
5
20  
6
7
8
9
10  
11  
12  
13  
19  
1
2
3
4
21  
23  
14  
15  
16  
17  
18  
22  
1
Note: The 551R remembers the audio and video input type and processing  
mode for each individual source input. These are recalled each time a source  
is selected.  
Standby/On  
Switches the unit between Standby mode (indicated by a dim power LED) and  
On (indicated by a bright power LED). Standby is an eco-friendly <1W low  
power mode. The unit may be left in Standby mode when not in use.  
14  
Audio input type  
Press this button to select between analogue, digital (optical/coaxial) or HDMI  
input types as the source of the audio for the currently selected source input.  
2
Phones  
Allows for the connection of stereo headphones with a 6.35mm/¼" Jack  
plug. Headphones with an impedance of between 32 and 600 ohms are  
recommended.  
The choices available depend on the inputs that have been assigned to that  
source, see later section.  
Note: Plugging in headphones will automatically mute the main and pre-amp  
outputs and select a 2-channel stereo down-mix to be created for headphone  
use.  
15  
Stereo modes  
Press to listen to a source in either digitally processed stereo or stereo and  
sub modes.  
3
Tuning +/-  
Used to tune FM/AM frequencies and skip presets for the built-in Tuner.  
16  
Surround modes  
Press to select Dolby Digital or DTS surround modes (with suitably encoded  
digital source material), or various Pro Logic II/IIx, DTS Neo:6 modes for  
matrix encoded analogue or digital material.  
4
Mode/Store  
Press to cycle between Tuner modes. Press and hold for storing presets (refer  
to the ‘Operating Instructions’ of this manual for more information).  
17  
Picture Adjustment  
5
Display  
Displays the status of the unit.  
Press to select various picture adjustments for sources that have the Scaler  
set to Process only (see ‘Source setup’ section in the manual). An  
adjustment bar will appear on the TV for the current item (Brightness,  
Contrast etc.) Press the Pic. Adj. button again to move to the next item.  
6
BD/DVD  
Press to select the source equipment connected to the BD/DVD input.  
This button is also used to change the scaler output resolution. Press and  
hold the button for 10 seconds and the current output resolution will appear  
on the 551Rs front panel display. Keep holding the button down and the  
551R will change to the next available resolution and show it on the front  
panel display. See later section.  
7
Video 1  
Press to select the source equipment connected to the Video 1 input.  
8
Video 2  
Press to select the source equipment connected to the Video 2 input.  
18  
Mute/Info  
Press to mute the sound from the main and pre-amp outputs of the 551R.  
Press again to cancel mute.  
9
Video 3/MP3  
Press to select the source equipment connected to the Video 3 or MP3 input  
(if a device is plugged into its 3.5mm mini-jack input).  
Note: Selecting a new source always cancels mute.  
Press and hold to re-display the current decoding mode.  
Note: The L audio input is also used for the supplied auto setup microphone.  
Refer to the ‘Auto setup’ section of this manual for more information.  
19  
Analogue Stereo Direct  
Press to listen directly to the analogue inputs for the current source directly with  
no analogue to digital conversion or DSP processing for highest possible stereo  
sound quality.  
10  
Tuner FM/AM  
Press to select the tuner. Once in Tuner mode press to switch between FM  
and AM modes.  
20  
Volume  
Use to increase/decrease the level of the sound from the outputs of the 551R.  
11  
Tape/MD/CDR  
Press to select the source equipment connected to the Tape/MD/CDR input.  
21  
Infrared sensor  
Receives IR commands from the supplied remote control.  
unobstructed line of sight between the remote control and the sensor is  
required.  
12  
CD/Aux/TV  
Press to select the source equipment connected to the CD/Aux input.  
A
clear,  
With ARC enabled (see later section), press again to select Audio Return  
Channel from a suitable TV.  
22  
Video 3 Input  
For occasional use with camcorders or games consoles etc.  
13  
7.1 Direct  
Press to select a 7.1 or 5.1 source (DVD-A or SACD player etc) connected to  
the 7.1 Direct In sockets.  
23  
MP3 Input  
This input can be used with the line or headphone outputs of portable music  
players.  
6
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azur 551R  
Rear panel connections  
3
9
10  
14  
15  
18  
5
16  
1
2
13  
4
6
19  
7
8
11  
12  
17  
14  
15  
1
2
&
FM/AM antennas  
&
HDMI  
All tuner antenna connections are made here. Refer to the ‘Antenna  
Connections’ section of this manual for more information.  
Inputs and output to a suitable TV/Monitor. The HDMI inputs can be assigned  
in the OSD. By Default the HDMI inputs are assigned to BD/DVD, Video 1 and  
Video 2, with the 4th input unassigned.  
3
Emitter In  
Allows modulated IR commands from multi-room systems or IR repeater  
systems to be received by the 551R.  
These inputs can be freely assigned, see later section on assigning video  
inputs.  
All video inputs whether analogue or HDMI are transcoded and output via the  
HDMI output.  
4
Service/Normal  
For dealer use only - Switches the 551R between normal (default) mode and  
two Service modes. Do not change the mode to service or make RS232  
connections to it in service mode as damage may result!  
16  
Component Video inputs  
By default the component inputs are unassigned, these inputs can be freely  
assigned, see later section on assigning video inputs.  
5
Composite and S-Video inputs  
These may be freely assigned to any source, see later section.  
Note: The preferred connection method for video inputs is always Composite  
Video, then S-Video, then Component Video, then HDMI in ascending order  
of quality (HDMI being the highest quality). HDMI and Component Video  
sources often also support Progressive Scan which gives better picture  
quality if supported by both your BD/DVD player and TV.  
6
RS232C  
Used for control of the 551R in Custom Install situations. A full protocol is  
available for the 551R on our website.  
17 . Speaker terminals  
Connect to loudspeakers with an impedance of between 4-8 ohms. 7.1, 5.1  
or less connections can be made.  
7
Analogue Audio inputs  
For use with the line level outputs of CD players, BD/DVD players etc.  
18  
Power On/Off  
Switches the unit on and off.  
8
Tape/MD/CDR In / Out  
For use with suitable recording devices. The output allows recording of the  
currently selected analogue source.  
19  
Mains power lead  
Once you have completed all connections, plug the AC power lead into an  
appropriate mains socket. The AV receiver is now ready for use.  
9
Digital Inputs  
S/P DIF or Toslink digital inputs for each source.  
You can choose to use a different type for each source but do not connect  
both at the same time for the same source.  
10  
Digital Outputs  
S/P DIF and Toslink digital outputs for recording . The outputs allow recording  
of the currently selected digital source.  
These are concurrent and both can be connected at the same time.  
11  
7.1 Preamp Out  
Connect to the 5.1/7.1 channel input terminals of another amplifier system,  
separate power amps, subwoofer or active loudspeakers.  
12  
7.1 Direct In  
Connect to the output terminals of a DVD-A, SACD player or other 5.1/7.1  
analogue source.  
13  
Heat tunnel vent grille  
Allows cooling of internal circuitry via the 551R’s proprietary X-TRACT heat  
tunnel. DO NOT OBSTRUCT!  
7
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Remote control  
The 551R is supplied with an Azur Navigator remote control.  
Insert the supplied AAA batteries to use. For full details of the  
various adjustment functions available from the remote, refer  
to the later sections of this manual.  
Picture Adjustment  
Press to select various picture adjustments for sources that  
have the Scaler set to Process only.  
An adjustment bar will appear on the TV for the current item  
(Brightness, Contracts etc.) Press the Pic. Adj. button again to  
move to the next item.  
Standby/On  
Switches the unit between Standby mode and On.  
Lip sync  
Press to activate and adjust the lip sync delay function if the  
audio and video appear out of sync. While the Lip sync delay  
Analogue Direct  
Directly selects a stereo analogue input for the current source  
with no A/D conversion or DSP processing.  
status is shown on the units display, use the Vol  
and Vol  
buttons to adjust the delay time. Adjusting the value to zero  
causes lip sync delay to be turned off. See later section in this  
manual.  
Stereo Modes  
Selects Stereo or Stereo + Sub modes for Analogue or Digital  
sources (digitally processed).  
Tuner AM/FM, BD/DVD, Video 1, Video 2,  
Vid 3/MP3, Tape/MD/CDR, CD/Aux/TV  
Surround Modes  
Selects digital surround processing modes and various matrix  
encoded surround processing modes for analogue or digital  
sources (digitally processed).  
Press the corresponding button to change the input source.  
Pressing the Tuner AM/FM button a second time toggles  
between AM and FM modes.  
Pressing the CD/Aux/TV button a second time if ARC is enable  
(see later section) selects TV-ARC (Audio Return Channel).  
Info  
Press to view the current source material and decoding mode.  
Press again whilst the current decoding mode is scrolling (as  
long as mute is not on) to display the incoming sample rate.  
When listening to FM with RDS, press to cycle round various  
RDS information modes.  
The above button descriptions are naturally brief. Please  
refer to the ‘Operating Instructions’ section of this manual for  
more information on the relevant functions implemented.  
Apple device compatibility  
The Azur 551R Navigator remote control can control the basic  
functions of Apple devices such as Apple TV and Apple’s  
iPod/iPhone/iPad range when docked in a Cambridge Audio  
or Apple dock.  
Stereo Mono  
When listening to FM, press to alternate between stereo and  
mono modes.  
Store  
Press to store the current frequency when in Tuner mode.  
Press and hold the source button that corresponds to the  
input that the Apple product is connected to whilst also  
pressing one of the buttons below.  
Mode  
Press to select Auto/Manual or Preset tuning when in Tuner  
mode.  
The functions are slightly different depending on the Apple  
product.  
Enter  
Mute  
Mutes the audio on the AV Receiver. Press again to cancel  
mute.  
Menu  
Play/Pause  
Volume  
Increase or decrease the volume of the AV receiver output.  
Also used as up/down in the OSD setup menus.  
Used to control volume and/or navigate menus.  
Used to navigate menus or Skip/Scan depending  
on Apple product used.  
Tune / Left & Right  
Press the right arrow to increase tuner frequency/change  
preset. Press the left arrow to decrease tuner  
frequency/change preset. Also used to scroll left/right in the  
OSD setup menus.  
In addition, the Azur remote can be paired with up to six  
specific Apple devices using any of the six source buttons.  
This can be useful if you have more than one Apple product.  
Enter  
Used in the OSD setup menus.  
For more information on pairing refer to your Apple  
device’s instruction manual.  
On-Screen Display (OSD)  
Press to turn on and off the on-screen setup menus for  
display on your monitor/screen.  
Pairing – To pair with an Apple device, press and hold the  
required source button along with the button for six  
seconds. Some devices like Apple TV have visual indication  
once pairing is achieved.  
Bass/Treble  
Press for bass/treble adjustment, using the Volume up/down  
buttons. Note: Bass/Treble is bypassed in analogue stereo  
direct and 7.1 direct modes.  
Un-pairing – To un-pair an Apple device, press and hold any  
of the source buttons along with the button for six  
seconds.  
Audio In Type  
Switches the audio between the types available for the  
current source. Depending on the source selected and  
whether you have assigned an HDMI input to it, Analogue,  
Digital and HDMI can be available.  
7.1 Direct  
Selects the 5.1/7.1 direct input.  
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Front panel display  
Loudspeaker connections  
To avoid damaging the speakers with a sudden high-level signal, be sure to  
switch the power off before connecting the speakers. Check the impedance  
of your speakers. Speakers with an impedance of between 4 and 8 ohms  
(each) are recommended.  
1
2
3
The coloured speaker terminals are positive (+) and the black speaker  
terminals are negative (-). Make sure correct polarity is maintained at each  
speaker connector or the sound can become weak and “phasey” with little  
bass.  
4
5
Prepare the speaker cords for connection by stripping off approximately  
10mm (3/8”) or less (no more than 10mm, as this could cause a short-  
circuit) of the outer insulation. Twist the wire tightly together so there are no  
loose ends. Unscrew the speaker terminal knob, insert the speaker cable,  
tighten the knob and secure the cable.  
1
Mode icons  
Direct indicator  
Lights when the 551R is in a Direct mode - Analogue Stereo Direct or 7.1  
Direct.  
Note: All connections are made via loudspeaker cable, except if using an  
active subwoofer which would be connected via a standard RCA phono cable.  
HDMI  
Indicates the current source audio input type is HDMI.  
Multi  
Indicates the 551R is receiving multi-channel PCM over HDMI.  
Digital/Analogue indicators  
Indicates whether the current source audio input type is Digital (S/P  
DIF/Toslink) or Analogue.  
2
Decoding mode indicators (PCM, Dolby Digital, DTS  
etc)  
Banana Plugs (4mm standard) connected to the speaker cable are  
recommended for direct insertion into the speaker terminals.  
Shows the current decoding mode, Dolby Digital, DTS etc. In conjunction with  
the Output Channel indicators these give full details of the current processing  
mode.  
Please refer to the ‘Speaker Configuration’ section of this manual for more  
information on 5.1 and 7.1 speaker setups.  
3
Powered subwoofer  
Video input icons  
Indicates the current video input type as Video (composite), S-Video, YUV  
(Component) or HDMI.  
Centre speaker  
4
Main information display  
Shows the current source selected, also the surround mode and station  
name/frequency when in tuner mode etc.  
5
Phono/RCA cable  
Output channel indicators  
Shows the currently active channels depending on decoding mode and  
source material. Icons lit indicate active channels in the source material.  
Icons with a box around them indicate actual channels being output by the  
551R.  
Display examples  
Indicates a 5.1 Dolby Digital source being played back as 5.0 (Sub off). The  
lit LFE indicates a low frequency effects channel is present in the source  
material. When this icon isn’t boxed it indicates the LFE channel is not being  
sent to a subwoofer but will be mixed into the front left and right instead.  
Surround  
speakers  
Front  
speakers  
Surround back  
speakers  
Indicates a 7.1 playback of DTS ES material.  
Indicates a 2.1 output created in the digital domain from analogue input  
material.  
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Analogue audio connections  
Note: Do not plug in the mains power lead or turn the unit on until all  
connections have been made.  
Connect to source equipment using stereo phono cables (stereo 2RCA-  
2RCA). Tape/MD/CDR recorder/players require two sets of stereo  
phono/RCA cables, one for recording, one for listening.  
Examples  
CD player  
Out  
Out  
BD/DVD player  
Phono cable (2RCA-2RCA)  
Audio player/recorder  
(Tape/MD/CD-R)  
Out  
In  
Digital audio connections  
Two types of digital audio connections can be made to the 551R:  
1. Optical (Toslink)  
Either type can be used for a source as the 551R automatically uses the  
active one.  
Note: Only one connection type should be used per source.  
2. Coaxial (S/P DIF)  
CD player  
Out  
OR  
Out  
BD/DVD player  
1
OR  
2
2
1
Examples  
OR  
iD100 Digital iPod Dock  
1
2
1
2
2
1
Audio player/recorder  
(Tape/MD/CD-R)  
OR  
OR  
Out  
In  
A recording device such as MD or CD-R can be connected to the digital  
outputs as shown.  
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HDMI input connections  
HDMI (High-Definition Multi-Media Interface) is an all digital connection that  
can carry both audio and video in one cable. Direct digital transfer of audio  
and video and support for various types of High Definition video content and  
high resolution audio make this the best connection type to use. The 4 HDMI  
inputs can be assigned to the BD/DVD, Video 1, Video 2, CD/Aux/TV,  
Tape/MD/CDR or 7.1 Direct sources (see the “Assigning HDMI sources”  
section for more information).  
DVI switching can be supported by using DVI to HDMI adaptors as these two  
connection types are compatible. When using DVI only video will be passed  
to the TV/Monitor and a Co-axial (S/P DIF) or Optical (Toslink) digital audio  
connection must be made from each source to the 551R for it to be able to  
receive audio and decode surround sound etc.  
Examples  
HDMI cable  
Blu-ray player with HDMI output  
HDMI cable  
Set-top box with HDMI output  
Analogue video input connections  
Three types of analogue video connections can be made to the 551R:  
1. Composite - connect with single 75 ohm video phono cable (RCA-RCA).  
2. S-Video - connect with S-Video cable.  
For sources that only support analogue video for best picture quality we  
recommend making Component video connections, then in declining order of  
quality, S-Video connections and then Composite video connections.  
The 551R is able to transcode i.e. upconvert analogue video to HDMI for the  
main monitor/TV output.  
3. Component - connect with 75 ohm Component video cables (3RCA-3RCA)  
For sources that support HDMI this is always the best choice.  
Video player  
BD/DVD player  
Examples  
Games console  
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Video output connection (HDMI)  
Connection to the TV is by HDMI. The 551R converts incoming analogue  
video to HDMI and scales it for best picture quality. See later section.  
HDMI cable  
5.1/7.1 Direct in  
DVD-A or SACD players can be connected to the 551R via its 5.1/7.1 Direct  
inputs allowing multi-channel music playback from these sources.  
If the player is selected via the BD/DVD button you can then view its content  
and decode any relevant surround sound soundtracks.  
DVD-A and SACD both support 5.1 output. The 551R's direct inputs also allow  
optional connection of Surround Back or Surround Left and Surround Right  
signals for compatibility with future 7.1 sources or external decoders.  
If 7.1 Direct is then pressed, the audio is now switched to come from the  
players analogue outputs.  
These connections are pure analogue for best sound quality and no DSP  
processing or Bass and Treble adjustment by the 551R is possible.  
To select the Direct Input press the 7.1 Direct button on the front panel or  
remote.  
It can be desirable to connect DVD-A/SACD players to the 551R by two  
methods at the same time.  
A Digital or HDMI input can be made to the 551R for surround sound  
decoding and an analogue 5.1 connection to 7.1 Direct for DVD-A/SACD  
playback.  
DVD-A player or SACD multi-channel player 5.1 connections  
Phono cables  
(2RCA-2RCA)  
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7.1 Preamp out  
Front input connections  
If it is desired to connect external power amplifiers, use Phono/RCA leads  
connected to the 7.1 Preamp Outputs on the rear panel.  
The front panel Video 3/MP3 input is for temporary connections to video  
games consoles etc. Remove the cap to access the Video 3 inputs and  
connect to a video game console or video camera’s outputs using stereo  
phono cables (RCA-RCA) and a Composite video cable. Alternatively, use the  
3.5mm mini-jack MP3 socket for the headphone/line outputs of portable  
MP3 players.  
For 5.1/7.1 use set the ‘Preamp Out’ setting in the ‘Output Setup’ OSD menu  
to 'Pre Out' rather than 'Normal'. This mutes all the internal power amplifiers  
as they are not being used.  
Power amplifier/s  
Audio In/Out Setup Menu  
BD/DVD  
In  
In  
In  
In  
In  
:
:
:
:
:
HDMI1  
Digital  
HDMI3  
Video1  
Video2  
CD/Aux  
Analog  
Analog  
Tape/MD/CDR  
Preamp Out  
TV ARC  
:
:
Pre Out  
Enable  
Return : [OSD]  
Subwoofer  
OR  
Phono cables  
(2RCA-2RCA)  
Composite  
video cable  
Stereo phono cable  
(RCA-RCA)  
MP3  
Player  
Video games console/  
Video camera outputs  
When pressing Video 3/MP3, the 551R automatically selects the MP3 socket  
if there is a device plugged into it.  
Alternatively the 551R features an External 2-Channel mode. This allows the  
551R to reproduce all the surround channels of suitable source material  
(Centre, Surrounds and Sub) whilst the Left and Right Front speakers are  
driven by an external power amplifier or other amplifier capable of supporting  
fixed level inputs (e.g. Cambridge Audio’s own 7/8 series amplifiers).  
Note: The Left front input is also used for the supplied auto setup  
microphone. Refer to the ‘Auto setup’ section of this manual for more  
information.  
L
C
R
Aerial connections  
FM aerial  
Connect an aerial to the FM 75 ohm socket (a simple wire aerial is supplied  
only for temporary use). Extend the lead and move the aerial around until you  
get the best reception. For continued use, we strongly recommended using a  
75ohm outdoor FM aerial.  
Amplifier  
551R  
L
R
AM loop aerial  
Sub  
Connect each end of the single length antenna to the antenna terminals.  
Place the antenna as far from the main system as possible to prevent  
unwanted noise and to obtain optimum reception. If the AM loop aerial  
provided does not receive sufficient reception, it may be necessary to use an  
outdoor AM aerial.  
FM aerial  
OR  
SR  
SL  
FM external  
aerial  
SBR  
SBL  
Set the ‘Preamp Out’ to ‘Ext 2 Ch’ in the OSD to mute the 551R’s own front  
left and right amplifier outputs only:  
Audio In/Out Setup Menu  
AM external  
aerial  
BD/DVD  
In  
In  
In  
In  
In  
:
:
:
:
:
HDMI1  
Digital  
HDMI3  
Video1  
Video2  
OR  
CD/Aux  
Analog  
Analog  
AM loop  
aerial  
Tape/MD/CDR  
Preamp Out  
TV ARC  
:
:
Ext 2Ch  
Enable  
Ground  
(optional)  
Return : [OSD]  
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551R setup  
The setup of the 551R is a reasonably simple 4 stage process. The speaker  
setup process (stage 2.) can either be performed manually or via the  
CAMCAS (Cambridge Audio Microphone Controlled Auto Setup) procedure.  
1
Front Left and Right speakers  
For stereo and multi-channel sound.  
The procedure is as follows:  
2
Centre speaker  
For dialogue and centre sounds. Ideally position at a similar height to the front  
left and right speakers (above or below the TV/monitor). Using a centre  
speaker from the same manufacturer/range as used for the front left and  
right speakers is advisable. This “timbre matching” allows surround effects to  
flow more naturally from left to right without obvious transitions between the  
speakers.  
1. Speaker configuration.  
2. Speaker setup (Speaker delay and Level calibration)  
3. Assigning HDMI and Analogue video inputs  
4. Source setup  
3
Surround Left and Right speakers  
For ambient and multi-channel sound. Floorstanding speakers should be  
angled towards the listening position. Bookshelf/standmount speakers should  
be wall mounted or used with dedicated speaker stands, positioned at or above  
ear height.  
1. Speaker configuration  
First tell the unit what kind of speaker package you have. The options are 5.1  
or 7.1 as shown below. The 551R can support up to a 7.1 speaker setup  
which means 7 speakers (Front Left, Front Right, Centre, Surround Left,  
Surround Right, Surround Back Left, Back Right) plus a mains powered  
Subwoofer (the .1).  
4
Subwoofer  
For improving the bass in your system, as well as reproducing dedicated LFE  
(Low Frequency Effects) cinema effects when playing Dolby Digital or DTS  
encoded discs. Your subwoofer can often be placed almost anywhere in the  
room as bass is less directional, but experimentation with positioning is  
recommended.  
Refer to the diagrams below for typical examples of 5.1 and 7.1 loudspeaker  
setups. Always adjust the speaker and listening positions until you are happy  
with the sound. Please refer to your loudspeaker and subwoofer manuals for  
more detailed positioning information.  
5
Surround Back Left and Right speakers  
Individual back speakers in place of a single surround back. Used with the  
7.1 processing types. Remember to experiment with the positions until you  
are happy with the sound.  
1
1
2
In each case the 5.1/7.1 in fact relates to the maximum number of speakers  
that can be used, as the Centre, Sub and Surround speakers can all be  
deleted if required (although of course performance is reduced). For  
example, if you choose not to use a Centre Channel speaker you can set this  
to 'None' in the settings as shown later and the 551R will automatically  
redirect the centre channel audio information into the Left and Right Front  
channels, creating what is known as a 'Phantom Centre'.  
4
5.1  
Similarly, you might decide not to use a subwoofer if your main Left and Right  
speakers are capable of reproducing enough bass for a satisfying  
music/movie experience. The 551R will then automatically re-direct the bass  
from the Subwoofer/Low Frequency Effect channel to the Left and Right  
Front Speakers.  
3
3
Note: This setup is very important as the 551R will also automatically use  
this information to select appropriate Dolby and DTS decoding modes  
dependant not only on the source material but also the speaker package it  
knows you have.  
1
1
To tell the unit the type of package you have, turn on the On-Screen Display  
via the remote button as shown. Highlight the ‘Speaker Configuration’ menu  
by using volume up and down on the remote then go to it by pressing Enter:  
2
4
7.1  
azur 551R Main Menu  
Speaker Setup  
Vol  
Audio In/Out Setup  
3
3
5
Video Input Setup  
Scaler Assign/Processing Setup  
Enter  
Tone/Sub/LFE Config  
Advanced Dolby/DTS Setup  
OSD Setup  
Vol  
5
Quit  
:
[OSD]  
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2. Speaker setup  
Set the Decode mode as 5.1 or 7.1 by highlighting the Decode Mode item and  
using the Left and Right arrows to scroll through the options:  
The following two sections can be performed by Cambridge Audio CAMCAS  
procedure so you can if you wish jump straight to that section. However, it is  
recommended that you do read these sections to understand the reasons for  
these settings and their implications.  
Speaker Config Menu  
Decode Mode  
Front L/R  
Centre  
:
:
:
:
:
:
7.1  
Large  
Small  
Small  
Small  
Yes  
Speaker delay  
Surr. L/R  
Surr. LB/RB  
Subwoofer  
Because the speakers in a surround sound system are usually different  
distances from the listener the 551R incorporates the ability to apply a  
variable digital delay to each of the channels so that the sound from each  
arrives at the same time at the listening position for best surround-sound  
effect.  
Return : [OSD]  
To set the delay times automatically, refer to the Auto setup section of this  
manual.  
Now move down and by highlighting each speaker in turn and using the Left  
and Right arrows select from ‘Large’, ‘Small’ or ‘None’ for each speaker.  
'Large' or 'Small' are used to describe each speaker in terms of bass  
response, they do not necessarily reflect the actual physical size of the  
speaker.  
To set the delay times manually, simply measure the distances from the  
listening position to each speaker as shown in the following diagram:  
1 = Front Left speaker  
1
2
Large = Speakers with an extended low frequency response of approximately  
20-40Hz to 16-20kHz (floorstanders or high quality larger stand-mounted  
speakers).  
2 = Front Right speaker  
3 = Centre speaker  
3
8
Small = Speakers with a less extended low frequency response of  
approximately 80-100Hz to 16-20kHz (small stand-mounted, bookshelf or  
satellite speakers).  
4 = Surround Left speaker  
5 = Surround Right speaker  
Setting each speaker allows the 551R to perform what is called Bass  
Management and to direct low frequency bass from music and the Low  
Frequency Effects channel of surround sound material to those speakers  
best able to reproduce it. If you do not wish to use any of the speakers set its  
setting to ‘None’.  
6 = Surround Back Left  
(when used)  
4
5
7 = Surround Back Right  
(when used)  
8 = Subwoofer (can be placed  
almost anywhere)  
The Subwoofer output can also be set to Yes or No. If no sub is being used  
make sure this setting is set to No to allow the 551R to re-direct the bass  
information in this channel to other speakers.  
7
6
Note: No delay setting for the subwoofer is necessary.  
Note: The 551R will force some speakers to certain settings in the following  
circumstances!  
Set the distances in the OSD Speaker Distance menu to the nearest value in  
metres (1 foot = 0.3 metres). The speed of sound is approx 340 metres per  
second, the 551R thus introduces approx 3mS of delay per metre of distance  
set.  
The Front Left and Right speakers may be ‘Large’ or ‘Small’ but never ‘None’  
as they are always required for any type of music/movie reproduction.  
Bass must always be reproduced by either the Front Left and Right or  
Subwoofer channel (or both). Setting the Front Left and Right to ‘Small’ will  
result in the Subwoofer automatically being set to ‘Yes’. Setting the  
Subwoofer to ‘No’ will automatically result in the Front Left and Right being  
set to ‘Large’.  
Go to the ‘Speaker Distance’ and highlight each speaker in turn. Set the  
distance to the nearest value to that which you measured by using the Left  
and Right arrows (the values do not need to be exact):  
Press the OSD button to exit the menu.  
If the Front Left and Right cannot reproduce low frequency bass a Subwoofer  
must be used. I.e. If the Front Left and Right are set as ‘Small’ the Sub must  
be Set to ‘Yes’.  
Speaker Distance Menu  
Unit  
:
:
:
:
:
:
:
:
Meters  
2.9  
Front L  
Front R  
Centre  
Also, setting the Front Left and Right as ‘Small’ will always set the other  
speakers as ‘Small’ (and the Sub to ‘Yes’). This is because LFE/ bass  
information should not be redirected to the surround channels.  
2.9  
2.9  
Surr. L  
Surr. R  
Surr. LB  
Surr. RB  
2.0  
2.0  
2.0  
To store the setting simply come back out of the OSD (pressing the OSD  
button always moves back one menu item, and then exits and stores from  
the main menu screen).  
2.0  
Return : [OSD]  
Note: In addition to the delays as set above Dolby Pro Logic II/IIx playback  
also requires an extra 15 milliseconds delay to the surround channels only.  
This extra delay is part of the Dolby ProLogic II specification and ensures that  
sound from the surrounds arrives just after sound from the front reducing the  
audibility of sound leakage from the front to the surround speakers. Because  
the relationship between the Dolby Digital and Dolby ProLogic IIx two delays  
is fixed (15mS extra to the surround channels), it is only necessary to set the  
delay by measuring the distances as we have described. The 551R will  
automatically provide the appropriate extra delay whenever you switch to a  
Pro Logic Mode.  
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Level calibration  
The 551R allows level calibration to match the acoustic level between  
different types/sizes or even manufacturers of speaker that may be being  
used for each channel. This is achieved by adjusting the relative level of each  
speaker. This can be done manually through the ‘Level Calibration’ menu in  
the OSD or automatically, see the following Auto setup section of this manual.  
The basic process for manual adjustment is to listen to or measure with a  
Sound Pressure Level (SPL) meter (more accurate and recommended but not  
essential) the level of sound produced by each speaker and set relative levels  
for each speaker so that they all sound the same loudness at the normal  
listening position. The 551R incorporates a Test Signal Generator (broad-  
band white noise) to facilitate this.  
To perform Auto Distance/Level setup first connect the supplied microphone  
to the front Left front panel audio input on the front panel and place it at your  
normal listening position in the room.  
Press the OSD button on the remote control then select the ‘Level  
Calibration’ menu. Now turn on the test signal by highlighting this item and  
pressing the Left or Right arrows:  
Press the OSD button on the remote control to access the OSD and then  
select the Speaker Setup Menu. Now select the option 'Auto Setup'. This will  
access the 'Auto Setup Menu' as below.  
Level Calibration Menu  
Speaker Setup Menu  
Test Signal  
Front L  
:
On  
0 dB  
0 dB  
0 dB  
0 dB  
0 dB  
0 dB  
0 dB  
0 dB  
:
Auto Setup  
Front R  
:
Speaker Configuration  
Speaker Distance  
Level Calibration  
Speaker Crossover  
Surround L  
Surround R  
Centre  
:
:
:
Subwoofer  
Surr. LB  
Surr. RB  
:
:
:
Return : [OSD]  
Return : [OSD]  
You can now move up and down the channels using Volume Up/Down on the  
remote. Each time a new channel is selected the test signal will be heard to  
move to that channel. Compare the loudness of all channels as heard at the  
listening position.  
Follow the on-screen instructions and press 'Enter' on the remote control  
when ready to start the Auto Setup function.  
Auto Setup Menu  
A “rushing” or “hissy” sound should be heard.  
Plug the microphone into the left channel of Video  
3 on the front panel and place the microphone at  
normal listening position and height  
Continue : [ENTER]  
Once activated the OSD will display the message below and the word  
'AUTOSETUP' will also be displayed on the front panel of the 551R to confirm.  
Auto Setup Menu  
The unit is now checking which speakers are  
connected and their phase  
Please wait........  
Now adjust the channels so they all sound the same (in terms of loudness  
only, channels of different frequency responses can sound different in terms  
of the “tone” of the sound i.e. more or less hissy).  
Pick the channel that sounds most different and select it to listen to the test  
signal. Now adjust the relative level in dB (using Arrow left/right on the  
remote) and continue comparing it to other channels until it is of equal  
loudness. The level can be adjusted up to + or - 10dB in 1dB steps. Repeat  
the process with the next most different channel. Once all channels sound  
the same in terms of loudness, press the OSD button again to save the  
settings and exit the menu.  
A series of test signals will now be output from all of the connected speaker  
terminals of the 551R (including the Subwoofer output).  
Once finished the unit will display a screen similar to the one below reporting  
which speakers were found and any that appear out of phase.  
Auto Setup Menu  
Auto speaker setup for Distance/Level  
The speakers that have been found are:  
L C R SL SR LB RB SW  
All speakers are in phase  
The 551R includes our simple automatic speaker setup system called  
'CAMCAS' (Cambridge Audio Mic Controlled Auto Setup). The system performs  
two sets of tests firstly checking which speakers are connected and whether  
they are wired correctly and in phase then second automatically measuring  
and adjusting the speaker delay timings (i.e. distance setting ) and levels.  
Continue : [ENTER]  
Before activating this feature the 'Decode Mode' (i.e. type of speaker  
package e.g. 5.1, 7.1) of the 551R and Large/Small/None status of each  
speaker must be set correctly as per section 1. This is important as the unit  
will only look for and check the speakers you have told it you have.  
If any speakers appear unconnected or out of phase carefully check the  
connections on the speaker and the back of the unit. Also check any bi-wiring  
links that might be present on the speaker. For any out of phase speakers  
check that the relevant + terminal of the 551R goes to the + terminal of that  
speaker and similarly the – terminal of the 551R goes to the – terminal of the  
speaker for that channel.  
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3. Assigning Video inputs  
If necessary press the OSD button to perform a retest or press Enter to start  
the second part of the autosetup procedure as below.  
The 551R has 4 HDMI (High Definition Multi-Media Interface) inputs and one  
HDMI output. HDMI is a fully digital audio/video system for picture and audio  
in digital format for best possible picture quality. DVI (Digital Video Interface)  
is a subset of HDMI that uses different connectors and only supports digital  
video (no audio). The 551R is compatible with DVI in that simple passive DVI-  
HDMI adaptors are available which allow the conversion of the DVI connector  
to an HDMI format connector (and back again if required) for routing via the  
551R.  
Auto Setup Menu  
The unit is now measuring the Distance and Level  
settings for your speakers  
Please wait........  
HDMI outputs on Blu-ray, DVD players and Set-top boxes also often support  
higher resolution formats including progressive scan types. Consult both your  
HDMI source and TV manuals for details, it is often possible to select from  
various options, you will want to select the highest quality output that both  
your source and TV are compatible with.  
From Blu-ray players, HDMI can also carry the latest Dolby Digital Plus and  
True-HD formats as well as DTS-HD High Resolution and Master Audio.  
Again a series of test signals will now be output from all of the connected  
speaker terminals and Subwoofer. The 551R uses these to measure the  
levels and distances (and hence introduce the correct delays) appropriate to  
your speakers and room characteristics.  
Ensure that the HDMI output of your player has been set to ‘Bitstream’ or  
‘Raw’ to pass the formats to the 551R for decoding.  
When the auto setup of the 551R is completed successfully, the 551R will  
return to the Speaker Setup Menu.  
Also some Blu-ray players feature settings to allow down conversion of Dolby  
Digital Plus etc. to backwards compatible Dolby Digital 5.1 for older AV  
receivers which do not support these formats.  
Speaker Setup Menu  
Ensure any such settings are disabled to allow our 551R access to all the  
latest formats.  
Auto Setup  
Speaker Configuration  
Speaker Distance  
Level Calibration  
Speaker Crossover  
For all the above reasons HDMI is the preferred connection method for both  
Audio and Video.  
The 551R can however also accept Composite, S-Video and Component  
video for sources without HDMI outputs and automatically transcode and  
scale this video to the HDMI output.  
Return : [OSD]  
Select the Video Input Assignment Menu.  
The Speaker Distance and Level Calibration settings for each speaker will  
have been updated.  
For each source the currently selected video input type will be shown.  
It is possible to assign any of the video input sockets to each Source in turn.  
It is of course now possible to go into the Speaker Delay and Level Calibration  
menus if you want to manually check/adjust the settings made by the  
CAMCAS system, and it is always advisable to check them as no system can  
be totally foolproof.  
The Options are Composite 1 and 2, S-Video 1 and 2, Component 1 and 2,  
HDMI1 – 4.  
Video Input Assignment  
To exit the auto setup menu of the 551R continue to press the OSD button  
on the remote control to exit all menus or until ‘OSD ‘is no longer displayed  
on the front panel. You can now unplug the microphone and put it away for  
future use.  
BD/DVD  
:
:
:
:
:
:
HDMI 1  
Composite 1  
HDMI 3  
Video 1  
Video 2  
CD/Aux  
-----  
Tape/MD/CDR  
7.1 Direct  
-----  
Note: If the auto setup of the 551R is unsuccessful for some reason a 'Fail'  
message will appear on the OSD. Included in this message will be details of  
the speaker channel or channels which have not been successfully adjusted.  
If this is the case, please again check that the speaker or speakers detailed  
in the OSD as 'failed' are connected correctly & have not been wired out of  
phase. Also check the microphone connection and any other external issues  
that could have affected the tests such as noise in the room etc.  
-----  
Return : [OSD]  
Note: Assigning a HDMI input to a source automatically also selects Scaler  
Bypassing for that source.  
Note: Like all such systems CAMCAS has some limitations. Speakers that  
exhibit very strong phase angles or deliberately wire some drive units out of  
phase can of course appear to the system as an out of phase speaker when  
correctly connected. If a speaker is reported as out of phase but is correctly  
wired please consult the speakers manufacturer in case this is the case.  
You can process these sources if you wish simply by setting the Scaler to  
Process in the Scaler Assign Processing menu afterwards.  
Similarly bi-polar speakers which radiate in more than one direction can  
make it difficult to measure the distance and sometimes level accurately as  
you might expect.  
In all cases it is always advisable to manually check the settings CAMCAS has  
made for a ‘reality check’ to ensure there are no obvious errors.  
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4. Source setup  
Scaler Assign/Processing  
The next step is to select each source input in turn on the 551R and tell the  
unit:  
The 551R features a Faroudja digital video processor/ scaler.  
This can if desired process any of the video sources and scale them up (or  
down) to various resolutions.  
• The type of audio connection you want to use for that source (Analogue,  
Digital or HDMI).  
This feature is most useful with analogue video sources where the processor  
can clean up the picture and scale it to 720p, 1080i or 1080p before  
outputting them over HDMI to a suitable TV.  
• The processing mode for that source.  
The 551R remembers these settings individually for every source input and  
automatically recalls them as and when you change source input.  
On entering this menu you will see that the sources that you assigned an  
analogue video input are automatically set to Process.  
Sources that you assigned an HDMI input for video are automatically set to  
Bypass (i.e. no processing).  
Audio connection type  
Select the ‘Audio In/Out Setup’ menu. Highlight each source in turn and  
select either analogue, digital or HDMI input types (use the Left and Right  
arrows):  
Scaler Assign/Processing Setup  
BD/DVD  
:
:
:
:
:
:
:
Process  
Bypass  
Bypass  
Bypass  
Bypass  
Bypass  
Bypass  
Video 1  
Video 2  
Audio In/Out Setup Menu  
Video 3  
CD/Aux  
BD/DVD  
:
:
:
:
:
HDMI 1  
Digital  
HDMI 3  
Analog  
Analog  
Tape/MD/CDR  
7.1 Direct  
Video 1  
Video 2  
CD/Aux  
Output resolution  
:
Return : [OSD]  
1080P/60Hz  
Tape/MD/CDR  
Preamp Out  
TV ARC  
:
:
Normal  
Enable  
This is because many HDMI sources will be natively 1080p or may have high  
quality processing built in where it is best to send this video directly to the TV  
without any further processing in the 551R.  
Return : [OSD]  
The options shown will be Analogue, Digital and HDMI if that source has been  
assigned an HDMI input for video as above.  
For analogue video sources it is almost always desirable to process these for  
best picture quality before passing them to the TV.  
Analogue inputs will require a stereo phono/RCA to phono/RCA cable  
connection to the 551R. Digital inputs will require either a 75ohm digital type  
phono/RCA to phono/RCA co-axial cable (S/P DIF) or an optical fibre cable  
(TOSLINK). The 551R will automatically use whichever is connected. Do not  
make connections to both the Optical and Co-axial inputs for a source.  
To change the Process/Bypass status of any source (including HDMI) simple  
select it in the menu and use the left and right buttons on the remote.  
You can also set the desired output resolution for any Processed video  
(Bypassed video is unaffected).  
Note: The Preamp output item at the bottom of this menu selects between  
Normal mode (the default), Pre Out Mode (when external power amps are  
used) and Ext 2 Ch Mode (where external power amps for front left and right  
only are used). These options are covered later. Make sure this setting shows  
Normal. TV-ARC is also covered in a later section.  
The options are 480p 60Hz, 576p 50Hz, 720p 50Hz, 720p 60Hz, 1080i  
50Hz, 1080i 60Hz, 1080p 50Hz and 1080p 60Hz.  
Note: 3D TV content, 24fps content or other video standards that the 551R  
cannot process or recognise are always Bypassed to the output whatever the  
setting in this OSD.  
Once you have set the audio types exit the OSD to save.  
This setting can also be changed at any time without using the OSD by  
pressing the Audio Input Type button on the front panel or remote, this will  
then cycle between analogue, digital or HDMI input types where available for  
the currently selected source, as usual they will then be remembered the  
next time you return to that source.  
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azur 551R  
Surround sound modes  
The 551R supports several music and home-cinema listening modes. The  
output the 551R can provide, depends both on the source signal present, the  
speaker setup selected and the decode mode selected. Before we describe  
how to operate the 551R, below is a brief guide to the Surround Sound  
formats that the 551R is compatible with for reference:  
Known also as DD (3/3) or DD 6.1, an enhanced form of Dolby Digital. On top  
of the discretely encoded 5.1 channels DD EX provides an extra 6th channel  
(Surround Back, giving 6.1) matrix encoded into the rear surrounds for  
greater image depth and more solid sound localisation behind the listener.  
DD EX requires a DD EX encoded disc. DD EX is backwards compatible with  
DD 5.1 decoding. If DD EX is decoded as normal DD the Surround Back signal  
will be present in both Left and Right Rear Surrounds (forming a phantom  
rear centre). It can also be decoded as 7.1 by sending the Surround Back  
decode to both the Surround Back Left and Right speakers (forming two  
mono Back Surrounds).  
Dolby’s lossless audio technology developed primarily for high capacity Blu-  
ray discs/players. Dolby True HD delivers theoretically bit-for-bit sound  
identical to the studio master by the use of 100% lossless encoding. Previous  
formats such as Dolby Digital 5.1 or EX have used lossy encoding where  
some data (that is theoretically less audible) is always lost in the encoding  
process to reduce the storage capacity needed on the disc. This is a new  
format that supports up to eight (usually used as 7.1) full-range channels of  
24-bit/96 kHz audio or two channels of 24/192 kHz via Blu-ray discs and is  
not backwards compatible with earlier schemes. The format can either be  
Known also as DTS (3/3) Matrix, an enhanced form of DTS. On top of the  
discretely encoded 5.1 channels DTS ES also provides an extra 6th channel  
(Surround Back giving 6.1), matrix encoded into the rear surrounds for  
greater image depth and more solid sound localisation behind the listener.  
DTS ES requires a DTS ES encoded disc. DTS ES material is backwards  
compatible with DTS 5.1 decoding. If DTS ES is decoded as normal DTS the  
Surround Back signal will be present in both Left and Right Rear Surrounds  
(forming a phantom rear centre). It can also be decoded as 7.1 by sending  
the Surround Back decode to the both the Surround Back Left and Right  
speakers (forming two mono Back Surrounds).  
transmitted as  
a
‘bitstream’ to the 551R for internal decoding  
(recommended) or can be decoded by some Blu-ray players internally and  
sent to the 551R as multi-channel PCM. In both cases an HDMI connection  
is required to the 551R and a suitable Blu-ray player as Dolby True HD is only  
ever transmitted over HDMI.  
An encoding scheme based on the original Dolby Digital CODEC, but with  
enhancements to improve coding efficiency and improved audio quality.  
Dolby Digital Plus supports 7.1 fully discrete channels compared to Dolby  
Digitals 5.1 (or 6.1 in its EX variant where the 6th channel is matrix encoded).  
These Dolby Digital Plus bitstreams are not backward compatible with legacy  
Dolby Digital decoders but require an AV Receiver developed to decode them  
(such as the 551R) and an HDMI connection as Dolby Digital Plus is currently  
only transmitted over HDMI. It is however a requirement that any Dolby Digital  
Plus enabled Blu-ray player must also be able transform the Dolby Digital  
Plus into a backwards compatible Dolby Digital 5.1 output for playback on  
legacy Dolby Digital systems. The 551R is however fully compatible with  
Dolby Digital Plus.  
Another enhanced form of DTS, also known as DTS (3/3) Discrete or DTS ES  
Discrete 6.1. DTS ES Discrete also provides an extra channel (Surround Back)  
for greater image depth and more solid sound localisation behind the  
listener, however in this case extra data is included in the bitstream so that  
all channels are discretely encoded. The Surround Back has greater  
separation from the other channels than is possible with matrix encoded  
technologies. DTS-ES Discrete requires a DTS-ES Discrete encoded disc.  
DTS ES Discrete is backwards compatible with both DTS 5.1 and DTS ES  
Matrix 6.1 decoding. If DTS ES Discrete is decoded as normal DTS the  
Surround Back signal will be present in both Left and Right Rear Surrounds  
(forming a phantom rear centre). If DTS ES Discrete is decoded with DTS ES  
Matrix the Surround Back signal will be decoded separately (i.e. as 6.1) but  
by a matrix process, which will give the same channel separation as if the  
source disc were actually DTS ES Matrix (but not as good as DTS EX Discrete).  
A new lossless audio CODEC from DTS, rather than being incompatible with  
earlier versions, DTS-HD Master Audio is transmitted as an extension to a  
normal DTS bitstream. A second embedded stream is sent which contains  
the "difference" between the original studio master and the lossy  
compressed DTS, plus the two extra channels. DTS-HD Master Audio  
enabled devices (such as the 551R) are able to use this difference  
information to recreate a bit for bit lossless version of the original 7.1 data.  
Devices which do not support the Master Audio extension simply decode the  
original 5.1 DTS stream and ignore the Master Audio extension providing  
backwards compatibility.  
It can also be decoded as 7.1 by sending the Surround Back decode to both  
the Surround Back Left and Right speakers (forming two mono Back  
Surrounds).  
The replacement for the original ProLogic, Pro Logic II is a technology where  
5 channels (Front Left, Front Right, Centre, Surround Left, Surround Right)  
are encoded into a Stereo mix by an analogue matrix process. Dolby Pro Logic  
II material can be played back by normal Stereo equipment (as Stereo) or  
decoded into 5 channel surround-sound.  
DTS-HD High Resolution Audio  
Known also as DTS-HR an extension to the original DTS audio format. DTS-HD  
High Resolution Audio supports 7.1 fully discrete channels compared to  
DTS’s 5.1 (or 6.1 in its DTS ES Matrix or DTS ES Discrete variants). As with  
DTS-HD Master Audio a second embedded stream is sent which contains the  
"difference" between the original studio master and the lossy compressed  
DTS, plus the two extra channels, however in this case the extra stream is  
also formed by lossy compression. Effectively this is a 7.1 version of DTS  
which can be decoded by devices (such as the 551R) which are able to  
decode DTS-HD High Resolution Audio. Devices which do not support the  
High Resolution extension simply decode the original 5.1 DTS stream and  
ignore the High Resolution extension providing backwards compatibility  
Dolby Pro Logic II is compatible with the earlier 4 channel (Left, Centre, Right  
and mono Surround) Dolby Pro Logic system (which was the decoding  
counterpart to Dolby Surround encoding) as used widely on Video tapes, TV  
broadcasts and earlier films.  
Note: Pro Logic does not include a Low Frequency Effects channel for the  
Subwoofer, but the 551R can create a Subwoofer output (for 5.1) via Bass  
management. Refer to the ‘Tone/Sub/LFE configuration’ section in the  
‘Operating instructions’ part of this manual.  
A newer version of Dolby Pro Logic II which is able to recreate 7 discrete  
surround sound channels from suitable encoded stereo source material. Pro  
Logic IIx also has modes for post processing either Stereo material or 5.1  
material into 7 channels whether or not it has been Pro Logic IIx encoded.  
When 5.1 decoding is required, Dolby Prologic II decoding will always be used  
by the 551R in place of Pro Logic IIx as IIx only works for 7 channel output.  
Known also as DD (3/2) or DD 5.1, provides (up to) 5.1 output from suitable  
encoded Dolby Digital material, with 5 main channels (Front Left, Front Right,  
Centre, Surround Left, Surround Right) and a Low Frequency Effects Channel  
for the subwoofer, all discretely encoded. Decoding Dolby Digital requires a  
Dolby Digital encoded DVD disc and a digital connection from the source  
equipment (Such as a DVD player) to the 551R.  
Note: Pro Logic IIx does not include a Low Frequency Effects channel for the  
Subwoofer, but the 551R can create a Subwoofer output (for 7.1) via Bass  
management. Refer to the ‘Tone/Sub/LFE configuration’ section in the  
‘Operating instructions’ part of this manual.  
Note: Dolby Digital and DTS formats can sometimes carry less channels than  
their maximum such as Dolby Digital (2/0) which means a Dolby Digital  
encoded signal which is actually only carrying a two channel stereo signal  
(other channels inactive).  
Known also as DTS (3/2) or DTS 5.1, DTS provides (up to) 5.1 output from  
suitable encoded DTS material, with 5 main channels (Front Left, Front Right,  
Centre, Surround Left, Surround Right) and a Low Frequency Effects Channel  
for the subwoofer, all discretely encoded. Decoding DTS requires a suitably  
encoded DTS disc and a digital connection from the source equipment to the  
551R.  
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Surround sound modes cont.  
Operating instructions  
To activate the 551R, switch the Power button on the rear panel to On then  
press the Standby/On button on the front panel.  
A DTS technology which is able to recreate 6 channel (Left Front, Right Front,  
Centre, Left Surround, Right Surround, Surround Back ) surround sound from  
suitable analogue matrix encoded stereo source material. DTS Neo:6  
material can be played back by normal Stereo equipment (as Stereo) or  
decoded into 7.1 by sending the Surround Back decode to the both the  
Surround Back Left and Right speakers (forming two mono Back Surrounds).  
Selecting the source  
1. Select the desired source by pushing the corresponding source button on  
the front panel or remote control.  
Note: Neo:6 does not include a Low Frequency Effects channel for the  
Subwoofer, but the 551R can create a Subwoofer output via Bass  
management. Refer to the ‘Tone/Sub/LFE configuration’ section in the  
‘Operating instructions’ part of this manual.  
2. If necessary, press the Audio Input Type button to select the input mode of  
the source equipment, either analogue, digital or HDMI (depending on the  
connection made on the rear panel). You may have already assigned this  
in the ‘Audio In/Out Setup Menu’ in the OSD.  
A DTS technology that provides 5.1 channels of 96kHz / 24bit audio (along  
with video if required) on DVD-Video and DVD-Audio (video zone) discs (when  
suitably encoded in DTS 96/24). DVD players which allow 'DTS digital out'  
pass the DTS 96/24 bitstream over S/P DIF or HDMI for decoding in the  
551R.  
DSP modes  
These modes allow a surround-sound experience from source material that  
has no encoding at all. The surround sound effect is achieved by Digital  
Signal Processing of the Analogue or Digital stereo source used. Five modes  
are possible: Movie, Music, Room, Theatre and Hall.  
The digital, analogue or HDMI icons on the display show which is the  
currently selected input type.  
Stereo/Stereo + Sub  
Only the Front Left and Front Right speakers (and subwoofer if selected) have  
output in this mode. If an analogue source is selected it will be converted to  
digital via 24 bit A/D converters to allow digital domain sub creation and  
bass/treble controls.  
Note: The 551R stores the input type for each source so that it is  
automatically recalled when that source is selected again.  
Selecting the desired listening mode  
Select an appropriate mode for the source material/type you are listening to  
by pressing the Stereo or Surround Modes button and cycling through sub-  
modes where available.  
If a digital source is selected the 551R will be processing either LPCM stereo  
(from the digital outputs of a CD player for instance) or a Stereo downmix of  
DD or DTS material (from the digital output of a DVD player for instance).  
Other modes  
In all cases the first time a mode button is pressed the 551R will report the  
current decoding mode on the front panel display. Pressing the button again  
will then cycle to the next available mode (if there is one). If no button is  
pressed for 4 or 5 seconds the 551R returns to normal operation without  
changing mode.  
Analogue Stereo Direct  
Selects the analogue inputs for the current source directly with no A/D  
conversion, DSP processing, Bass/Treble or subwoofer channel active.  
Provides the very best fidelity for analogue Hi-Fi source equipment. In this  
mode the 551R is acting just like a normal Hi-Fi integrated amplifier.  
Stereo Modes - Selects 2 channel Stereo operation for stereo material,  
pressing again selects Stereo + Sub mode.  
This is a digitally processed mode that allows bass and treble controls, and  
sub generation if required. The input can be either analogue (in which case  
it will be turned into digital by 24 bit A/D conversion) or natively digital.  
Multi Channel PCM  
Some playback devices (in particular Blu-ray players) are able to decode  
some of the above formats themselves internally and then output the  
decoded audio as Multi Channel PCM to the 551R. In addition Blu-ray disks  
can support native unencoded Multi Channel PCM soundtracks (of up to 8  
channels) on the disc itself. In either case if your player can output these over  
HDMI the 551R is able to receive them in Multi-Channel PCM mode.  
Surround Modes - Selects a range of digital surround modes for the  
appropriately digitally encoded material  
Note: Some Surround Sound types (such as the Dolby and DTS HD) are  
available only from Blu-ray disc over HDMI.  
Pressing the Surround Modes button will cause the 551R to lock onto the  
incoming bitstream and select the first available mode for the current  
bitstream type.  
In some circumstances (see tables) pressing the button again will switch to  
an alternative decoding option.  
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azur 551R  
ProLogic and Neo:6 are both available in various guises to decode  
appropriately encoded soundtracks. Additionally DSP modes are available to  
process sources with no encoding at all. Due to the matrix encoding process  
none of these modes incorporate flags that tell the 551R the type of  
encoding used in the source material. Thus you must manually select these  
modes.  
Pressing the Surround Modes button when the 551R has locked to a DD/DTS  
bitstream will present more options where possible including Post-Processed  
modes.  
These are modes that allow extra processing to be applied after the main  
surround-sound decoding. For instance Dolby Digital (2/0) + PLII Music.  
Which adds a 5.1 ProLogic decode to a Stereo Dolby Digital decode to turn 2  
channel stereo into 5.1.  
For 7.1 Speaker setups, the number of decoding possibilities increases as  
shown in the following ‘Decode modes’ tables. Several extra Post Processing  
modes are available using either Prologic IIx or Neo:6.  
Incoming Dolby Digital/DTS streams are always shown on the front  
panel display as Dolby Digital (x/x).x or DTS (x/x).x, where the  
bracketed numbers indicate the active channels in the source material.  
Active output channels are shown by the icons on the right hand side  
of the front panel display. Possible incoming DD/DTS types are:  
(1/0)  
- Mono, Centre channel only  
- Left/Right stereo  
(2/0)  
(2/0).1  
(2/2)  
- Left/Right stereo and LFE (Sub)  
- Left/Right stereo and Left/Right surround  
- Left, Centre, Right  
(3/0)  
(3/0).1  
(3/2).1  
- Left, Centre, Right and LFE (Sub)  
- 5.1: Left, Right, Centre, Left Surround, Right Surround and  
LFE (Sub)  
(3/4).1  
- 7.1: Left, Right, Centre, Left Surround, Right Surround,  
Surround Back Left, Surround Back Right and LFE (Sub)  
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Operating instructions continued  
Decode modes - 5.1 speaker setup  
Incoming  
audio  
format  
Native  
channel  
resolution  
Modes available  
Output  
channels  
PCM  
2
PCM  
2 "  
>5.1  
>5.1  
>5.1  
>5.1  
>5.1  
>5.1 !  
>5.1 !  
>5.1 !  
>5.1 !  
>5.1 !  
PCM + PLII Movie  
PCM + PLII Music  
PCM + PLII Game  
PCM + Neo:6 Cinema  
PCM + Neo:6 Music  
Movie  
Music  
Room  
Theatre  
Hall  
Dolby Digital (2/0)  
2
Dolby Digital (2/0)  
2 "  
>5.1  
>5.1  
>5.1  
Dolby Digital (2/0) + PLII Movie  
Dolby Digital (2/0) + PLII Music  
Dolby Digital (2/0) + PLII Game  
Dolby Digital  
5.1  
Dolby Digital (3/2).1  
Dolby Digital EX (3/3).1  
DTS (2/0)  
5.1  
Dolby Digital EX  
DTS (2/0)  
6.1  
5.1<  
2 "  
5.1  
2
DTS  
5.1  
DTS (3/2).1  
DTS ES Matrix  
6.1  
DTS ES Matrix (3/3).1  
DTS ES Discrete (3/3).1  
DTS 96/24  
5.1<  
5.1<  
5.1  
DTS ES Discrete  
DTS 96/24  
6.1  
5.1  
Multi Channel PCM  
Multi Channel PCM  
Dolby Digital Plus  
Dolby Digital Plus  
Dolby True HD  
5.1 $  
7.1 $  
5.1 $  
7.1 $  
5.1 $  
7.1 $  
5.1 $  
7.1 $  
5.1 $  
7.1 $  
Multi PCM (3/2).1  
Multi PCM (3/4).1  
Dolby Digital Plus (3/2).1  
Dolby Digital Plus (3/4).1  
Dolby True HD (3/2).1  
Dolby True HD (3/4).1  
DTS-HD HR (3/2).1  
DTS-HD HR (3/4).1  
DTS-HD MA (3/2).1  
DTS-HD MA (3/4).1  
5.1  
5.1<  
5.1  
5.1<  
5.1 &  
5.1< &  
5.1  
Dolby True HD  
DTS HD High Resolution  
DTS HD High Resolution  
DTS Master Audio  
DTS Master Audio  
5.1<  
5.1 &  
5.1< &  
&
Lossless encoded format.  
Key (all tables)  
5.1< Indicates a 5.1 decode of 6.1 or 7.1 material (phantom back  
centre).  
Note: Bold entries are being output in their native resolution/format.  
>5.1 Indicates a 5.1 output created by a 2.0 decode post processed to  
5.1.  
In all cases, pressing the Stereo Modes button always cycles round:  
>7.1 Indicates 7.1 output created by a 2.0 or 5.1 decode, post-  
processed to 7.1.  
Stereo Modes  
Stereo  
Output channels  
2
#
7.1 Upmix of 5.1 material, Left and Right Surrounds mixed to both  
Left and Right Surrounds and Left and Right Rear Surrounds.  
Stereo + Sub  
2.1  
Either native Stereo or downmix of DD/DTS 5.1/6.1/7.1 etc.  
%
7.1 ‘upmix’ of 6.1 material. Center back surround channel played  
back via two mono rear surrounds. Acoustically this is actually a  
native format presentation.  
Pressing a mode button will first cause the 551R to scroll the  
current decode mode across the front panel display. Pressing the  
mode button again whilst text is scrolling on the display or within 4  
seconds of it finishing will select and display the next available  
mode.  
"
!
$
Stereo or Stereo + Sub, Press Stereo Modes Button to change.  
Digital Signal Processing created modes for signals with no encoding.  
Available via HDMI inputs only.  
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azur 551R  
Decode modes - 7.1 speaker setup  
Incoming  
audio  
format  
Native  
channel  
resolution  
Modes available  
Output  
channels  
PCM  
2
PCM  
2 "  
>7.1  
>7.1  
>7.1  
>7.1  
>7.1  
>7.1 !  
>7.1 !  
>7.1 !  
>7.1 !  
>7.1 !  
PCM + PLIIx Movie  
PCM + PLIIx Music  
PCM + PLIIx Game  
PCM + Neo:6 Cinema  
PCM + Neo:6 Music  
Movie  
Music  
Room  
Theatre  
Hall  
When the source has been  
appropriately encoded PLII gives  
5 channel Neo:6 6 channel and  
PLIIx 7 channel matrix encoding  
Dolby Digital (2/0)  
Dolby Digital  
2
Dolby Digital (2/0)  
2 "  
>7.1  
>7.1  
>7.1  
Dolby Digital (2/0) + PLIIx Movie  
Dolby Digital (2/0) + PLIIx Music  
Dolby Digital (2/0) + PLIIx Game  
5.1  
Dolby Digital (3/2).1 + EX  
Dolby Digital (3/2).1  
Dolby Digital (3/2).1 + PLIIx Movie  
Dolby Digital (3/2).1 + PLIIx Music  
>7.1  
>7.1  
>7.1  
5.1  
Dolby Digital EX  
DTS (2/0)  
6.1  
2
Dolby Digital EX (3/3).1 Upmix  
Dolby Digital (3/3).1 + PLIIx Movie  
Dolby Digital (3/3).1 + PLIIx Music  
7.1 %  
>7.1  
>7.1  
DTS (2/0)  
2 "  
>7.1  
>7.1  
>7.1 %  
>7.1 %  
DTS (2/0) + PLIIx Movie  
DTS (2/0) + PLIIx Music  
DTS (2/0) + Neo:6 Cinema  
DTS (2/0) + Neo:6 Music  
DTS  
5.1  
DTS (3/2).1 Upmix  
DTS (3/2).1  
DTS (3/2).1 + PLIIx Movie  
DTS (3/2).1 + PLIIx Music  
DTS (3/2).1 + Neo:6 Cinema  
DTS (3/2).1 + Neo:6 Music  
>7.1 #  
>7.1  
>7.1  
>7.1 %  
>7.1 %  
5.1  
DTS ES Matrix  
DTS ES Discrete  
DTS 96/24  
6.1  
6.1  
5.1  
DTS ES Matrix (3/3).1 Upmix  
DTS ES Matrix (3/3).1 + PLIIx Movie  
DTS ES Matrix (3/3).1 + PLIIx Music  
DTS ES Matrix (3/3).1 + Neo:6 Cinema  
DTS ES Matrix (3/3).1 + Neo:6 Music  
7.1 %  
>7.1  
>7.1  
>7.1 %  
>7.1 %  
DTS ES Discrete (3/3).1 Upmix  
7.1 %  
>7.1  
>7.1  
>7.1 %  
>7.1 %  
DTS ES Discrete (3/3) + PLIIx Movie  
DTS ES Discrete (3/3) + PLIIx Music  
DTS ES Discrete (3/3) + Neo:6 Cinema  
DTS ES Discrete (3/3) + Neo:6 Music  
DTS 96/24 Upmix  
DTS 96/24  
DTS 96/24 (3/2).1 + PLIIx Movie  
DTS 96/24 (3/2).1 + PLIIx Music  
DTS 96/24 (3/2).1 + Neo:6 Cinema  
DTS 96/24 (3/2).1 + Neo:6 Music  
>7.1  
>7.1  
>7.1  
>7.1  
>7.1  
5.1  
Multi Channel PCM  
5.1 $  
Multi PCM 3/2.1  
Multi PCM (3/2).1 + PLIIx Movie  
Multi PCM (3/2).1 + PLIIx Music  
5.1  
>7.1  
>7.1  
Multi Channel PCM  
Dolby Digital Plus  
7.1 $  
5.1 $  
Multi PCM 3/4.1  
7.1  
Dolby Digital Plus (3/2).1 Upmix  
Dolby Digital Plus (3/2).1  
Dolby Digital Plus (3/2).1 + PLIIx Movie  
Dolby Digital Plus (3/2).1 + PLIIx Music  
>7.1 #  
>7.1  
>7.1  
5.1  
Dolby Digital Plus  
7.1 $  
Dolby Digital Plus (3/4).1  
7.1  
23  
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Operating instructions continued  
Decode modes - 7.1 speaker setup  
Incoming  
audio  
format  
Native  
channel  
resolution  
Modes available  
Output  
channels  
Dolby True HD  
5.1 $  
Dolby True HD (3/2).1 Upmix  
Dolby True HD (3/2).1  
>7.1 &#  
>7.1  
>7.1  
*
Dolby True HD (3/2).1 + PLIIx Movie  
*
Dolby True HD (3/2).1 + PLIIx Music  
5.1 &  
Dolby True HD  
7.1 $  
5.1$  
Dolby True HD (3/4).1  
7.1 &  
DTS HD High Resolution  
DTS-HD HR (3/2).1 Upmix  
DTS-HD HR (3/2).1  
>7.1 #  
5.1  
DTS HD High Resolution  
DTS HD Master Audio  
7.1$  
DTS-HD HR (3/4).1  
7.1  
5.1 $  
DTS-HD MA (3/2).1 Upmix  
DTS-HD MA (3/2).1  
>7.1 &#  
5.1 &  
DTS HD Master Audio  
7.1 $  
DTS-HD MA (3/4).1  
7.1 &  
* <=96kHz  
Using the Tuner  
Press the Info button on the remote and go through the displayed functions.  
There are functions for PS, PTY, CT and RT:  
PS (Station Name) - current station name will be shown  
PTY (Program Type) - current name type of the program will be shown  
CT (Clock/Time) - current time from Radio Station will be displayed.  
Note: Clock/Time will be only transmitted from local radio station once a  
minute. If the Clock - Time is not available the message “NO CT” will appear  
briefly on the display.  
1. Press the Tuner FM/AM button on the front panel or remote control to  
select Tuner mode.  
RT (Radiotext) - some Text messages will be shown.  
2. Press the Tuner FM/AM button again to select FM or AM if desired.  
3. Press the Mode/Store button on the front panel (or Mode button on the  
remote control) to select automatic tuning, manual tuning or preset mode.  
Lip sync  
4. Press the Tuning + and Tuning - buttons (or the left and right arrow buttons  
on the remote) to select the station you want to listen to.  
The 551R can if required apply a small delay to the audio playback to  
resynchronise it to any video playback which appears to be behind the audio  
in time.  
In automatic tuning mode the unit scans to the next strong station. In manual  
tuning mode the user can step manually through the frequencies. In preset  
mode the unit cycles through the presets only.  
This can sometimes happen if the video is slightly delayed by a player or TV  
performing a lot of video processing.  
Two FM modes are available, stereo and mono - Press the Stereo Mono  
button on the remote to alternate between Stereo mode and Mono mode. If  
the Display button is pressed, the RDS station names of FM stations will be  
displayed if available.  
Pressing the Lip Sync button on the remote will bring up the  
current Lip Sync value on the 551Rs main display and allow  
adjustments in 10mS (10 thousandths of a second) increments.  
Setting the Lip sync value to 0 causes Lip Sync delay to be turned off.  
Storing stations  
1. Tune in a station you wish to store as explained previously.  
2. Press and hold the Mode/Store button (or use the Store button on the  
remote) for 5 seconds.  
3. Use the Tuning+/- buttons to select a preset station number (1-15). The  
station number will be displayed on the screen.  
4. Press the Mode/Store button (or use the Store button on the remote) to  
memorise the frequency.  
Note: The Lip sync value is stored and recalled separately for each source.  
Radio Data Systems (RDS)  
RDS is a method for the transmission of additional information from local  
radio stations. It is only available in FM mode. RDS will only work if the local  
broadcasting stations have RDS transmission and the signal is strong  
enough.  
24  
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azur 551R  
You can use the up/down buttons to make changes to the picture or press  
Pic.Adj. again to move to the next item.  
Audio Return Channel  
The 551R supports an Audio Return Channel (ARC) function from TVs that  
also support this function (which must feature an HDMI1.4 input and have  
actually implemented the ARC feature, see your TVs manual).  
Adjustments are available for Brightness, Contrast, Hue, Saturation and  
4:3/16:9 Zoom.  
A second feature of the Picture Adjustment button is setting the output  
resolution for the scaler (this can also be done in the OSD see earlier  
section).  
ARC allows a TV to send audio back down its incoming HDMI lead to the  
551Rs HDMI output socket.  
This function allows the 551R to play back the audio from a TVs built-in  
terrestrial cable or satellite tuner whilst you watch it’s picture.  
If the button is pressed and held for 10 seconds approx the 551R will show  
the current scaler output resolution on the 551Rs front panel display.  
To enable the use of ARC navigate to the select TV– ARC and use the  
up/down buttons to select the Enabled setting.  
Holding for a further 10S will change the output resolution to the next  
available one (and allow time for the TV to re-sync).  
Holding further will continue the process and the video output will gradually  
move through all possible resolutions 480i 50Hz, 576i 60HZ, 720p 50Hz,  
720p 60Hz, 1080i 50Hz, 1080i 60Hz, 1080p 50Hz and 1080p 60Hz (and  
back round).  
Audio In/Out Setup Menu  
BD/DVD  
:
:
:
:
:
HDMI 1  
Digital  
HDMI 3  
Analog  
Analog  
Video 1  
Video 2  
CD/Aux  
This feature can be useful if the scaler output is accidentally set to a  
resolution your TV does not support and picture is lost.  
Tape/MD/CDR  
Preamp Out  
TV ARC  
:
:
Ext 2ch  
Enable  
By pressing and holding Pic.Adj. you can cause the 551R to scroll through all  
resolutions automatically. Simply let go of the button when a visible video  
image at a suitable resolution appears.  
Return : [OSD]  
Using ARC  
ARC can be started in one of two ways. If your TV supports it there may be a  
menu item to start ARC on your TV.  
Audio split mode  
In some circumstances the 551R is able to allow the user to view one source  
whilst listening to another. For instance you could watch the video of a sports  
channel whilst getting an audio commentary from another such as the Tuner.  
Your TV then sends commands to the 551R which cause it to start an ARC  
session and ‘TV-ARC’ will appear on the front panel display automatically.  
To perform Audio Split:  
Some TVs may also start an ARC session whenever you select the in-built  
tuner and stop when you select another source.  
1. Select the source you wish to watch in the normal way.  
Alternatively you can start ARC by pressing the CD/Aux/TV button twice on  
the 551R (as long as TV-ARC has been enabled in the 551Rs OSD as above).  
2. Press and hold the button for the source you wish to listen to. After 4  
seconds approx “Audio Split” will scroll across the display and you will now  
be listening to that source instead. Video will not have changed.  
The first press selects CD/Aux, the second selects ARC and ‘TV-ARC’ appears  
on the front panel display. The 551R will then send commands to the TV over  
HDMI to try to start an ARC session.  
1
2
The 551R allows splitting from any source whatever its video input type  
(Composite, S-Video, Component or HDMI) but only to sources where  
analogue or digital audio is the current audio input type, not HDMI.  
To finish ARC simply disengage it on your TV or press a different source  
button on the 551R.  
If the combination is not allowed “Mode Unavailable” will instead scroll  
across the display and no change will be made.  
To cancel audio split mode simply select a new source and normal operation  
will be resumed.  
Picture Adjustment  
For sources that have had the Scaler set to Process the 551R can provide  
some picture adjustments.  
These adjustments are remembered source by source.  
Pressing a source for which the scaler is in Bypass will do nothing.  
Pressing a source for which the scaler is set to Process will bring up the first  
adjustment item, shown at the top of the screen as below:  
Brightness  
60  
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Advanced setup  
For most users the basic four stage setup process (Page 14 onwards) should  
be sufficient for normal use.  
See diagram below of a bi-amped system (only front left and right speakers  
shown).  
However the 551R also features many more advanced settings for users who  
wish to further customise the settings and operation to personal preference.  
Note: Bi-wire links must be removed on the speaker’s terminals.  
Speaker Impedance 4-8 Ohms  
Sub crossovers and bass management  
As covered in the ‘551R Setup’ section the 551R performs bass  
management for any speaker that is set to ‘Small’ in the OSD. This means  
that bass for speakers that are unable to reproduce bass effectively is  
instead routed to the subwoofer.  
Surround  
Back Left/  
Surround Back  
Surround  
Back Right  
Front  
Right  
Front  
Left  
Surround  
Right  
Surround  
Left  
Centre  
7.1  
6.1  
5.1  
Speaker Crossover Menu  
Front L/R  
Centre  
:
:
:
:
80Hz  
80Hz  
80Hz  
80Hz  
Surr. L/R  
Surr. LB/RB  
Tone/Sub/LFE configuration  
Select the ‘Tone/Sub/LFE’ menu:  
Return : [OSD]  
Tone/Sub/LFE Menu  
Bass  
0dB  
0dB  
0dB  
0dB  
Off  
0dB  
Off  
0dB  
Treble  
LFE Trim  
The crossover adjustments in the Speaker crossover menu are used to  
determine the point as which this transition is made. In other words they set  
the frequency below which bass is routed away from any ‘Small’ speakers  
and into the Subwoofer channel. It should be understood that bass sent to  
the subwoofer by bass management is different to bass encoded into the  
surround-sound material as a dedicated Low Frequency Effects channel.  
Dolby Digital/DTS Sub Trim  
Dolby Digital/DTS Bass Aug  
Dolby PLIIx/NEO Sub Trim  
Dolby PLIIx/NEO Bass Aug  
Stereo+Sub Trim  
:
:
:
:
:
Return : [OSD]  
If the source material contains a separate LFE channel (ie DD or DTS  
material) this is always routed to the subwoofer (if it is On) and is not affected  
by the crossover setting. Some encoding types (Such as Dolby PLII/IIx and  
Neo:6) do not actually have a LFE channel.  
The Bass response can be adjusted +/- 10dB @ 100Hz (shelving). The Treble  
response can be adjusted +/-10dB @ 10kHz (shelving). The “Tone” icon will  
light up on the display if these controls are adjusted away from 0dB (flat). The  
Subwoofer crossover point can also be adjusted from 40 to 150Hz in 10Hz  
steps and also to 200Hz.  
The default setting for all bass management crossovers is 80Hz and is a  
good global starting point. If you do not wish to make any adjustments simply  
leave all crossovers at this default setting.  
The 551R incorporates a couple of advanced Bass Management features.  
The overall Sub Level for DD/DTS modes, PLII/x/Neo:6 modes and Stereo +  
Sub mode can be set to different levels. This can be useful if you prefer to  
have a high level of Sub operation whilst watching movies but a lower level  
for music playback. The three levels are simply adjusted by up to +/-10dB in  
the OSD. The second feature is that the way Bass Management is applied  
can be changed.  
Note: These settings are actually only used for speakers that have been set  
to Small in the Speaker Configuration Menu.  
For advanced users it is however possible to adjust the speaker crossovers  
used for any speakers set as ‘Small’ independently to allow for the fact that  
you may wish to direct bass away from front floorstanding speakers (and to  
the Subwoofer) at perhaps 50Hz but away from Surround Left and Rights at  
perhaps 100Hz. If you wish to make these adjustments it is best to consult  
your loudspeaker manufacturers documentation or contact your dealer to  
determine the frequency response of your system and where each speaker  
types bass response starts to tail off (often called the 3dB or 6dB roll  
off/cutoff point). This would be approximately the point the corresponding  
crossover should be set to.  
In normal operation (Bass Augment Off) if the Front speakers are set to  
‘Small’ (in the ‘Speaker Config’ menu) their bass is re-directed by high-pass  
filtering the Fronts and sending that bass to the Sub channel (i.e. bass is  
removed from the Fronts and sent to the Sub). If they are set to ‘Large’ no  
filtering takes place and no bass is sent from them to the Sub channel.  
However with the Bass Augment function On and the Front speakers set to  
‘Large’, bass from the Front Left and Right is now sent to the Sub channel  
without any filtering of the Front Left and Right taking place (i.e. these  
channels remain full range). In other words, the bass in the Sub channel is  
augmented by extra bass from the Front Left and Right channels. If the Front  
Left and Right are set ‘Small’, Bass Augment has no effect and operation is  
the same as for Bass Augment Off.  
Bi-amping  
If you a running a 5.1 (or less) speaker setup only the 551R allows for bi-  
amping of the front left and right channels. It will be seen in the Speaker  
Configuration menu that with the Decode mode set as 5.1 a Bi-amp On/Off  
item appears.  
Bass Augment can be On or Off separately for DD/DTS or PLII/IIx/Neo:6  
operation.  
Speaker Config Menu  
Decode Mode  
Front L/R  
Centre  
:
:
:
:
5.1  
Large  
Small  
Small  
There is no Bass Augment function for Stereo + Sub mode because in this  
mode if the Front speakers are set to ‘Large’ they will actually always be  
unfiltered.  
Surr. L/R  
Bass Augment can be a useful function with PLII/IIx and Neo:6 material  
because these encoding types do not include an LFE Channel. This would  
normally mean that if all the speakers in your setup were set to ‘Large’, the  
subwoofer would in fact be inactive (as no bass has been re-directed plus  
there is no LFE channel). If it is desired to have the subwoofer running with  
all Large Speakers and these encoding types, enable Bass Augment for  
PLII/Neo6 and then set the Crossover points and levels by ear. A Sub channel  
will now be created from the Front Left and Right channels without filtering  
them. As with all adjustments it is a good idea to experiment to determine  
what works best with your particular setup.  
Subwoofer  
Biamp  
:
:
Yes  
No  
Return : [OSD]  
When selected, the 551R sends the front left and right signals to the SBL and  
SBR outputs as well.  
In conjunction with bi-wireable/bi-ampable speakers this allows you to use  
two runs of speaker cable to each speaker with a dedicated amplifier  
channel for the bass and treble drivers of each speaker which can slightly  
increase the sound quality.  
Note: These adjustments work in all digitally processed Stereo or Surround  
modes but not in Analogue Stereo Direct or 7.1 Direct modes.  
The LFE channel (for DD / DTS material) can also be trimmed by up to 10dB  
in 1dB steps useful for late night listening or other situations where it might  
be desired to reduce the low frequency effect level perhaps temporarily.  
26  
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azur 551R  
Remember the LFE is the Low Frequency Effects channel encoded into the  
disc and is different to the over all sub level which can include bass  
management from the other speakers.  
Dynamic range control  
Advanced Dolby/DTS Setup  
Bass/Treble adjustments can also be made from the remote without  
entering the OSD by pressing the Bass/Treble button and then using the Vol  
Up/Down buttons.  
Dolby Pro Logic IIx Panorama  
:
:
:
:
:
Off  
Dolby Pro Logic IIx Centre Width  
Dolby Pro Logic IIx Dimension  
DTS HD Spkr Remap  
0
3
1
Sub trim adjustments can also be made from the remote without the OSD  
by holding down the Sub On/Off button and using the Vol Up/Down buttons  
whilst it is kept down.  
Dolby DRC  
Auto  
Return : [OSD]  
OSD setup  
On-Screen Display is available on all video outputs.  
This setting controls the dynamic range of Dolby Digital movie soundtracks by  
compressing the audio to limit the difference in level between loud and quiet  
passages in the movie.  
OSD Setup Menu  
This can be a useful feature when watching movies late at night for instance.  
Three settings are possible:  
Language  
Firmware  
:
:
English  
1.6/1.6/1.0  
Auto – Compression is always applied for Dolby Digital and Dolby Digital Plus  
soundtracks. The application and amount of compression to Dolby True HD  
soundtracks is dictated by the soundtrack itself.  
(MCU/HDMI/DSP)  
Off – No Compression (normal full dynamic range playback)  
Return : [OSD]  
On – Compression is always applied for all Dolby soundtracks (reduced  
dynamic range playback)  
The OSD can be shown in several different languages. To change the OSD  
language highlight the ‘Language’ menu and use the Left and Right arrows  
to select between English, Dutch, French, German, Spanish, Italian,  
Norwegian, Swedish and Danish. Press the OSD button again to exit and save  
the options.  
Advanced Dolby/DTS adjustments  
The first three adjustments affect Dolby Prologic II or IIx processing (or post-  
processing) in Music mode only. Movie and Game modes where available are  
preset as part of their specification to match the encoding or provide a  
specific effect. These adjustments have no affect in these modes.  
Advanced Dolby/DTS Setup  
Dolby Pro Logic IIx Panorama  
Dolby Pro Logic IIx Centre Width  
Dolby Pro Logic IIx Dimension  
DTS HD Spkr Remap  
:
:
:
:
:
Off  
0
3
1
Dolby DRC  
Auto  
Return : [OSD]  
Panorama mode - A Prologic II/IIx mode that extends the front Stereo image  
to the surround sound speakers for a more enveloping experience. This mode  
can be either On or Off.  
Centre Width - Allows gradual adjustment of the centre image from being  
produced only by the Centre speaker (Setting 0) through levels of being  
spread between the centre channel and Left and Right speakers to finally  
being produced by the Front Left and Right speakers only (Phantom Centre,  
Setting 7). Useful in optimising the Front/Centre/Right soundfield for best  
integration of the 3 speakers. Best tuned by ear.  
Dimension - Adjusts the soundfield to be gradually shifted from the front of  
the room to the back to suit taste, speaker positioning and size of room.  
Setting 0 has the image furthest forward, 6 furthest back.  
All three adjustments are a matter of personal preference, experiment for the  
settings that you prefer when you are using PLII or PLIIx decoding.  
27  
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Advanced setup continued  
Configuration 4 - 7.1 channel: L, C, R, LFE, Ls, Rs, Lh, Rh  
DTS-HD speaker re-map  
Center  
As there is no “official” speaker layout for discrete 7.1 channel audio it could  
be possible that the original master track of a 7.1 soundtrack was mastered  
with a different speaker layout than the one being used in your home. DTS  
have addressed this issue for DTS-HD Master Audio and High Resolution Audio  
by including in the bitstream flags to tell the receiving AV Receiver which of a  
7 nominal 7.1 speaker layouts was actually used. By using special DTS  
Speaker Remap algorithms the 551R is able to electronically “reposition” the  
speakers (i.e. direct the audio propagation), so that the playback matches the  
original encoded layout for the best possible sound quality.  
Left Height  
Right Height  
Left (30°)  
LFE  
Right (30°)  
Left Surround (110°)  
A second aim of this technology is that by re-purposing some of the 7.1  
available channels it is possible to use some of them to do new things such  
as adding a height element to the sound field.  
Right Surround (110°)  
The following digrams show the 7 possible encoding schemes for reference.  
Configuration 5 - 7.1 channel: L, C, R, LFE, Ls, Rs, Lsr, Rsr  
The angles quoted refer to the angle from a nominal 0 degrees line through  
the centre channel to each speaker either side right or left of that line.  
Center  
Left (30°)  
Configurations 1 and 5 are variants of normal 7.1 setups whilst Configuration  
6 can increase the available panning of the front channels.  
Right (30°)  
LFE  
Configurations 2,3,4 and 7 are less conventional and re-purpose some of the  
available 7.1 channels to provide an extra height dimension to the sound field  
in different ways. Please refer to the DTS website for more details on this new  
technology.  
Left Surround (110°)  
Right Surround (110°)  
Configuration 1 - 7.1 channel: L, C, R, LFE, Lss, Rss, Lsr, Rsr  
Left Surround Rear (150°)  
Center  
Right Surround Rear (150°)  
Left (30°)  
Right (30°)  
LFE  
Configuration 6 - 7.1 channel: L, C, R, LFE, Ls, Rs, Lw, Rw  
Left Surround Side (90°)  
Right Surround Side (90°)  
Center  
Left (30°)  
Right (30°)  
LFE  
Left Surround Rear (150°)  
Right Surround Rear (150°)  
Left Wide (60°)  
Right Wide (60°)  
Configuration 2 - 7.1 channel: L, C, R, LFE, Ls, Rs, Lhs, Rhs  
Left Surround (110°)  
Right Surround (110°)  
Center  
Left (30°)  
Configuration 7 - 7.1 channel: L, C, R, LFE, Ls, Rs, Ch, Cs  
Right (30°)  
LFE  
Left Height Side (90°)  
Center Height  
Center  
Right Height Side (90°)  
Left (30°)  
LFE  
Right (30°)  
Left Surround (110°)  
Right Surround (110°)  
Configuration 3 - 7.1 channel: L, C, R, LFE, Ls, Rs, Cs, Oh  
Left Surround (110°)  
Right Surround (110°)  
Center Surround  
Center Over-Head  
Center  
Left (30°)  
LFE  
Right (30°)  
Left Surround (110°)  
Right Surround (110°)  
Center Surround  
28  
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azur 551R  
Custom installation (C.I.) use  
An IR Emitter Input is provided that allows  
modulated IR remote control commands to be  
received electrically by the unit. An RS232 port is  
also featured which allows the 551R to be controlled  
by C.I. systems.  
RS232C  
For playback the 551R expects you to have an actual physical speaker setup  
approximately conforming to one of the layouts as shown below.  
5.1  
Center  
In addition the unit features 'direct' IR/Control codes as well as toggle codes  
for some of their features to simplify programming custom installation  
systems. Special direct On/Off and Mute commands can be accessed on the  
supplied remote control for teaching into C.I. systems as follows:  
Left (30°)  
Right (30°)  
LFE  
1.Press and hold the Standby/On button on the remote control. The remote  
first generates it's standby (toggle) command. Keep the button held down,  
after 12 seconds an AV receiver “On” command will be generated. If the  
button is kept held down for a further 12 seconds, an AV receiver “Off”  
command is generated.  
Left Surround Rear (150°)  
Repeat this procedure with the Mute, Sub On/Off, Stereo Mono and Tuner  
AM/FM buttons to send On/Off commands. The Tuner AM/FM button also  
provides unique FM and AM commands to allow switching to a specific band.  
Right Surround Rear (150°)  
A full code table and RS232 protocol for this product is available on the  
Cambridge Audio website at www.cambridge-audio.com.  
7.1  
Configuration 1  
or Configuration 5  
Reset/Back-up memory  
The 551R has a function that preserves the preset memory and other  
settings. In the event of a power failure, or if the power cord of the unit is  
disconnected from the mains outlet, the back-up memory will preserve the  
preset memory for approximately one week. If the power supply is interrupted  
for 7 days or longer, the memory settings will be erased.  
If it is desired to reset all settings to their factory defaults (or in the unlikely  
event that the unit locks up due to an electrical discharge etc), with the unit  
on and out of Standby mode press and hold the DVD and Analogue Stereo  
Direct buttons on the front panel for three seconds.  
For 5.1 setups the situation is simple, the 551R automatically performs any  
DTS Speaker Remapping required, mapping any of the 7 incoming  
possibilities to this configuration.  
“RESET” will appear briefly on the front panel display before returning to  
Standby mode.  
For 7.1 there are two alternative speaker setup you might have. These  
corresponds to configuration 1 and configuration 5 as above.  
Here you need to tell the 551R which configuration best matches your  
speaker setup by selecting the DTS-HD speaker menu and selecting the 1 or  
5 option.  
Advanced Dolby/DTS Setup  
Dolby Pro Logic IIx Panorama  
Dolby Pro Logic IIx Centre Width  
Dolby Pro Logic IIx Dimension  
DTS HD Spkr Remap  
:
:
:
:
:
Off  
0
3
1
Dolby DRC  
Auto  
Return : [OSD]  
The 551R can then perform any speaker re-mapping required automatically,  
and maps any of the incoming 7 possibilities to whichever one of the two 7.1  
possibilities you have.  
Note: This feature by its nature only works for 7.1 DTS HD Master Audio or  
DTS HD High Resolution Audio bitstreams.  
Also note that where the incoming speaker configuration and your physical  
speaker configuration actually match the 551R performs no mapping as  
you’d expect.  
29  
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Troubleshooting  
A low hum or buzz sound can be heard  
Power cords or lighting placed near this product.  
Analogue inputs not connected securely.  
Sound is not audible from one channel  
Speaker connections disconnected.  
Speaker set to “None” in OSD setup menu.  
Sound cuts off when listening to music or there is no  
sound even though power is ON  
Speaker impedance is less than prescribed for the 551R.  
The unit is not adequately ventilated and may be overheating.  
Low bass or “phasey” response  
Speaker polarity (+/-) of one or more speakers is reversed.  
An unusual hissing noise is heard when listening to a radio  
broadcast in stereo, but not heard when listening in mono  
A slight noise may be heard because the method used for modulation of FM  
stereo broadcasts is different than that used for mono broadcasts.  
Aerial quality also effects the level of hiss heard.  
Noise is excessive in both stereo and monaural radio broadcasts  
Poor location and/or direction of the antenna.  
Transmitting station is too far away.  
No sound from the rear speakers  
Source being played is not recorded in surround sound.  
Speaker/s set to “None” in OSD setup menu.  
A stereo mode has been selected.  
No sound from the centre speaker  
Centre speaker has been set to “None” in OSD setup menu.  
A stereo mode has been selected.  
No sound from the subwoofer  
Sub has been set to ‘Off’ in the OSD setup menu or via the remote.  
DTS Neo:6, DD PLII/IIx modes (which have no LFE channel) have been  
selected with all speakers set to “Large”.  
Remote control is not working  
The batteries are flat.  
The remote is too far from the receiver or out of the effective range.  
No sound from speakers when connected to a digital  
input  
Audio input type is set to analogue (check display). Press the Audio Input  
Type button to switch to digital.  
No sound from speakers when connected to an analogue input  
Audio input type is set to digital. Press the Audio Input Type button to switch  
to analogue (check display).  
Audio input type can also be set in the Input/Output Setup menu of the OSD.  
No Sound from any speakers  
Receiver is set for ‘Pre-out’ operation.  
By entering the OSD menu, selecting the input/output setup menu, the  
Preamp out setting can be changed from ‘Normal’ to ‘Pre-out’. This disables  
the internal amplifiers when an external decoder amplifier is being used.  
Reset this to ‘Normal’ to restore sound.  
No Sound from front speakers, but rear speakers work  
Receiver is set for ‘Ext 2Ch’ operation.  
By entering the OSD menu, selecting the input/output setup menu, the  
Preamp out setting can be changed from ‘normal’ to ‘Ext. 2 Ch’. This disables  
the internal amplifiers for the front channels when an external amplifier is  
being used to drive those channels. Reset this to ‘Normal’ to restore sound.  
30  
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azur 551R  
Technical specifications  
Audio  
Power Output  
General  
Architecture  
All Channels : 110 watts rms per channel,  
6 ohms (two channels driven)  
Cirrus Logic CS43122 24 Bit 192kHz  
capable DAC for Front Left & Right  
All Channels : 90 watts rms per channel,  
8 ohms (two channels driven)  
Cirrus Logic CS52526 24 Bit 192kHz  
capable CODEC for surround  
channels + 24 Bit 2 channel A/D  
conversion  
All Channels : 60 watts rms per channel,  
8 ohms (all 7 channels driven)  
Cirrus Logic CS497004 dual 32 bit DSP  
Faroudja FLI2310 scaler  
THD  
<0.006% @1kHz  
Crosstalk  
<-60dB @ 1kHz  
Audio Inputs  
6 Line Level Analogue  
Tuner (FM/AM)  
7.1 Analogue Input  
Frequency response  
S/N Ratio  
10Hz - 20kHz -1dB  
>90dB 'A' weighted  
47kOhms / 175mV or greater  
4 Digital Co-axial, 4 Digital Optical  
Audio Input Impedance /  
Sensitivity  
Video Inputs  
2 Composite, 2 S-Video,  
2 Component Video, 4 HDMI  
Digital Input Impedance  
75 ohms (Coaxial/S/P DIF)  
Main Audio Outputs  
7 Amplified Speaker Outputs  
7.1 Preamp outputs  
Tone Control  
- Bass  
- Treble  
+/-10dB @ 100Hz  
+/-10dB @ 10kHz  
Main Video Output  
1 HDMI  
Recording Audio Outputs  
1 Line Level Analogue  
1 Digital Co-Axial, 1 Digital Optical  
Tuner  
- FM mode  
- AM mode  
87.5-108MHz, 75 ohm coaxial aerial  
522-1629kHz, 300 ohm loop aerial  
Other connections  
1 1/4" / 6.35mm Headphone Output  
(32 To 600 ohms recommended)  
1 IR Emitter In  
1 RS232C  
1 IEC type mains inlet  
Video  
Video Levels /Impedance  
- Composite (CVBS)  
1Vp-p / 75 ohm  
Standby power consumption <1w  
Quiescent power consumption <70w  
- S-Video (S-VHS)  
- Component  
Y 1Vp-p / 75 ohm  
C 0.286 Vp-p / 75 ohm  
Y 1Vp-p / 75 ohm  
Cb/Cr 0.75Vp-p / 75 ohm  
Pb/Pr 0.75Vp-p / 75 ohm  
Max power consumption  
Dimensions - H x W x D  
Weight  
700w  
110 x 430 x 340mm  
10kg (22lbs)  
HDMI  
HDMI 1.4  
EIA/CEA - 861D  
HDCP 1.1  
All audio modes supported except reception of native Direct Stream  
Digital (DSD).  
ARC and 3D-TV/deep colour pass through supported.  
CEC and HEC not supported.  
31  
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Cambridge Audio is a brand of Audio Partnership Plc  
Registered Office: Gallery Court, Hankey Place  
London SE1 4BB, United Kingdom  
Registered in England No. 2953313  
© 2011 Cambridge Audio Ltd  
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