Knoll Speaker Q450RS User Manual

Q450rs  
Multiroom made easy!  
v 1.0  
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Table of Contents  
Important Considerations  
Test all installed cabling before connecting to the  
Safety and FCC warning  
Amplifier checklist  
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3
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4
5
6
7
Q450rs. Test the speaker and wires with a multi-meter  
set to ohms for correct impedance and short circuits.  
Resistance and impedance differ slightly so a very  
accurate reading is not expected. Long speaker wires will  
increase resistance. This also includes cat5 connectors.  
Incorrect polarity of a twisted pair can cause serious  
damage to the Q450rs and its peripherals.  
Important considerations  
What is it and who is it for  
Getting to know the Q450rs  
Q450rs system layout  
MR44 keypad  
BIX and BIB balanced input plates  
System specifications  
Wire terminations  
8
8
9
Do not make any wire connections of any kind  
with the power supply connected.  
Q450rs expanding capabilities  
Installation procedure  
Troubleshooting  
10  
11  
12  
12  
During operation, the amplifier may become  
warm. This is normal; there are instances during high-  
level playback into low impedance speakers when the  
amplifier will become much warmer than usual. To  
ensure the amplifiers trouble-free operation, it is  
necessary to provide adequate ventilation. Keep the  
amplifier away from external sources of heat such as  
radiators and hot-air ducts. Never place the amplifier  
with other heat-producing components in a cabinet or  
enclosure lacking free airflow. Do not stack other  
components on top of your Q450rs.  
Warranty Information  
Unpacking: The carton and packing materials used in  
shipping your new amplifier are designed to protect  
it from shock and vibration during shipping. We  
suggest that you save the carton and packing  
materials to use if you move, or if the unit ever  
needs to be returned to us for any reason.  
Care, maintenance, and cleaning: wipe with  
clean, dry, soft cloth. If necessary, first wipe the surface  
with a slightly dampened soft cloth with mild soapy  
water, then with a fresh cloth dampened with clean  
water. Wipe dry immediately with a dry cloth. NEVER use  
benzene, thinner, alcohol, or any other volatile cleaning  
agent. Do not use abrasive cleaners, as they will damage  
the finish of the metal parts. Avoid spraying insecticides,  
waxes, polishing agents, or any aerosol product near the  
Q450 or any of its components.  
Installation Checklist  
Plan your installation. Consider what  
sources will be used and make provisions  
for infrared and sources, speakers and  
cabling.  
It is best to run extra cat5 wires to each room as  
Collect the proper tools.  
this will make the installation more future proof and  
offers an inexpensive repair if a cable is damaged.  
Run all wires and label both ends.  
Install speakers as directed by speaker  
manufacturer. Test wire for short circuits.  
Terminate cat5 and test for short circuits  
and polarity for MR44 and BIX/BIB modules.  
Retest.  
Mount Q450rs if necessary.  
Test speaker wire for shorts and correct  
impedance with ohm meter.  
Connect speakers. Note which zone is for  
which room and which source is from which  
location.  
Connect cat5 connectors. Ensure cat5  
keypads and sources are going to the  
correct socket.  
Connect audio outputs to Q450rs or to  
‘local’ BIX/BIB inputs. Make a note of which  
input is used for each source.  
It is important to know where the various wires  
required to operate the Q450rs will be run. Never run a  
cat5 or speaker cable parallel to a high voltage AC mains  
cable. This may cause problems with the operation of  
Q450rs. If possible dont locate a keypad next to a light  
switch for the same reason.  
The Q450rs needs to be a safe distance from any  
large AC motors, including an air conditioner, or  
fridge/freezer, or breaker panels as this can cause  
unwanted interference.  
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WHAT IS IT?  
WHO IS IT FOR?  
The Q450rs is a four source, four-zone multi-room  
controller amplifier in a small, efficient package. It is  
much like having four integrated hifi amplifiers  
hidden away from sight and connected together for  
a seamless listening experience.  
It is equally comfortable at home as it is scaled up,  
using the controlled audio outputs, for larger  
installations such as art galleries or coffee shops.  
The Q450rs is controlled by RS232 commands. There  
is also a wall plate keypad controlled version  
available, model Q450. The balanced input wall  
plates (BIX) are a feature we are very proud of and  
we hope you will agree. The BIX plate allows the  
Q450 to have an input from a room or space far  
away from the Q450 without any drop in signal  
quality and best of all without any added unwanted  
hum and noise. This is an industry first.  
BIX Remote Input Wall Plate  
Let’s put this another way. Say you are enjoying a  
dip in the tub. Wouldn’t it be nice to be able to plug  
in your iPod beside the tub and not have to run to  
the amp to change a playlist? Best of all, the floor  
stays dry!  
Coming soon is a Bluetooth balanced input plate  
(BIB). Not only does it allow for a wireless Bluetooth  
connection, there is also a wired 3.5mm audio input  
jack.  
Cat5 is a very reliable wire. The BIX and BIB remote  
input wall plates use a home run of cat5 wire. We  
use cat5 connectors terminated to the T568A  
protocol. It is strongly recommended to adhere to  
this standard.  
The Q450rs is controlled with its RS232 port. This  
port can be connected directly to a whole house  
control system or with third party adapters to the  
home Ethernet or wifi and controlled by iPad,  
iPhone, android tablets and other devices.  
Speaker Connectors: We use a  
detachable connector sometimes  
called a phoenix connector.  
There are four connectors  
included with the Q450rs. Each  
connects one stereo zone.  
Each of the four zones can access any of the four  
sources, adjust volume, bass, treble, mute, and  
power on/off.  
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Line Inputs  
Controlled Outputs  
Direct, non-balanced RCA  
inputs. We do not suggest  
connecting a line input and a  
balanced input(BIB) on the  
The line level controlled outputs  
the same content as the  
Power Indicator  
Power Jack  
24 VDC  
Center pin positive  
amplified outputs but at lower  
level that can feed larger and/or  
same input. It is acceptable to multiple amplifiers. They can  
have (for example) a direct be connected to subwoofers  
input on 1 and 2 and balanced too!  
inputs on 3 and 4.  
GETTING TO KNOW THE Q450rs  
89mm  
3mm  
Amplifier Outputs  
Balanced Zone Inputs  
RS232 Connector  
The Q450rs is rated at 25 watts This feature is unique to the  
RMS per channel (50 watts  
per zone).  
Q450rs. It allows the user to  
connect a local source in a  
distant room.  
This is a lot of power to drive  
even the most demanding  
speakers.  
By being balanced, the signal  
quality is perfectly transmitted  
without any unwanted added  
hum or noise.  
Note: It is perfectly acceptable to have more  
than one pair of speakers per zone. Make sure  
the series or parallel impedance is between  
4-16 ohms.  
Note: The source inputs are shared throughout so  
any or all zones can play the same program material  
(or obviously some other input source).  
Note: Each zone is effectively an integrated stereo  
amplifier. You can use the internal stereo amplifiers  
and/or connect the Q450rs to larger amplifiers to  
increase power output or to scale up the zone to  
larger sub-zones. Each zone functions identically;  
respective to its address.  
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This configuration shows a laptop connected  
to the RS232 port to control the Q450rs.  
A BIX balanced input wall plate is shown  
connected to input #1. The speakers are  
shown connected to the Q450rs amp #1 outputs.  
Before trim out (or final installation) always double-  
check the wires for continuity and short circuits as  
problems can arise such as a tradesperson driving a  
screw through the wire.  
Q450rs TYPICAL SYSTEM LAYOUT  
We suggest using a cat5 tester and investing in top  
quality crimp tools as second-rate or poor crimping  
is the number one source of installation problems.  
Typical Installation  
with four zones, each  
connected to a pair  
of speakers.  
Zone 1 also has a  
BIB balanced  
input plate.  
Zone 2: Den  
Zone 3:  
Bedroom  
Zone 1: Hot tub  
Speaker  
Selecting input 1 from any  
zone will allow that zone to  
monitor the hot tub input source  
Zone 4:  
Kitchen  
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RS232 Connection  
Write Request Examples:  
The RS232 connection is used to control the Q450RS by an  
external controller or computer and can work with our  
without keypads. The Q450RS connects to the RS232  
controller with a 9-pin db9 connector. The programming  
reference follows.  
Function  
Command  
Response  
Turn Channel On (1on)  
turns on amplifier  
channel 1 on  
turn amplifier  
channel 1 to input 4  
turn amplifier  
Select Input  
Set Volume  
(1sl4)  
(1vl50)  
channel 1 to  
volume 50 (of 87)  
Terminal Settings  
To control the Q450RS amplifier via other control systems,  
connect a RS-232 cable to the serial control connector on  
the rear of the Q450RS and set your computer’s or control  
unit port settings to match the following configuration:  
Supported Command Summary  
# = numerical zone or amplifier channel value  
$$ = second numerical value (may be one or two digits)  
Setting  
Value  
Function  
Command Range Read/Write Remarks  
Bits per second  
Data bits  
Parity  
Stop bits  
Flow control  
Emulation  
19,200  
8
None  
1
None  
Auto detect  
Version  
Reset  
(vr?)  
(rx)  
none  
none  
1-4  
1-4  
1-4  
read only  
write only 1 second  
write only  
write only  
write only  
write only  
write only  
write only  
read only  
Channel On  
Channel Off  
Mute  
Un-mute  
Mute All  
Un-mute All  
(#on)  
(#of)  
(#mu)  
(#um)  
(amu)  
(aum)  
1-4  
none  
none  
1-4  
Command Summary  
Volume Request (#vl?)  
Volume Set  
Volume All  
Input Request  
Input Set  
Input Select All  
All Channels On  
All Channels Off  
All Channels Vol up (avlu)  
All Channels Vol dn (avld) none  
Channel Vol up  
(#vl$$) 1-4 / 0-87 write only  
All commands are enclosed in parentheses. The request  
can be in some cases a read request (followed by a “?”), or  
a write request (followed by 0-2 ASCII digits). A read  
command will return the current setting, and write  
command will change the setting.  
(avl$$) 0-87  
(#sl?) 1-4  
write only  
read only  
(#sl$) 1-4 / 1-4 write only  
(asl$)  
(aon)  
(aof)  
1-4  
write only  
write only  
write only  
write only Note 1  
write only Note 1  
write only Note 1  
write only Note 1  
none  
none  
none  
Read request format: (nAA?) where:  
(
starts the command  
n
AA  
?
denotes amplifier channel (if required)  
denotes the command (may be 1 or 2 letters)  
denotes the read request  
(#vlu)  
1-4  
1-4  
Channel Vol down (#vld)  
Bass adjustment (#b$)  
Treble adjustment (#t$)  
1-4 / 0-F write only Note 2  
1-4 / 0-F write only Note 2  
)
ends the command  
Display treble  
Display bass  
(#b?)  
(#t?)  
1-4  
1-4  
read only  
read only  
Read Request Example:  
Function Command  
Response  
Note1: Volume up or down requests increase or decrease  
volume level by 5  
Volume (1vl?)  
returns the volume on  
channel 1 (0-87)  
Note 2: Treble and bass commands use hexadecimal  
values 0-F, default (flat) is 8.  
Write request format (nAA$$) where:  
(
n
AA  
$$  
starts the command  
Also, it is best to leave about a ½ second between  
commands, as some integrators may miss commands if  
they are entered too quickly.  
denotes the amplifier channel (if required)  
denotes the command (may be 1, 2 or 3 letters )  
denotes the value to be written if required  
(leading zero’s ARE necessary)  
All commands also send a message back to the terminal  
after they have been completed, so that it is easy to keep  
track of the previous commands that were sent.  
)
ends the command  
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Note:  
Some commands are read or write only and  
BIB AND BIX INPUT WALL PLATES  
some are both. For example Mute Allis a write only  
command and Versionis a read only command.  
The BIX is an input module for sources in distant rooms or  
locations. To the zone it’s in, it would be ‘Local’. For this  
reason we identify it as such, think of it as stage left for  
custom installation. It’s a feature unique to Q450. It  
provides a differential balanced input to allow  
transmission of an analog signal over long distances  
without generating noise or signal loss due to conductor  
impedance. BIX is an acronym for Balanced Input  
eXtender. Enough with the fancy talk. It makes your iPod  
sound good even though it’s far from the Q450 amp. It’s a  
clever solution to a perennial problem faced in distributed  
audio systems. We just decided that it’s too important to  
not have integrated into the system.  
Supported Command Messages  
Function  
Command Message  
Version  
Reset  
(vr?)  
(rx)  
Version Number  
“Resetting...”  
Channel On  
Channel Off  
Mute  
Un-mute  
Mute All  
Un-mute All  
(#on)  
(#of)  
(#mu)  
(#um)  
(amu)  
(aum)  
“Zone # on”  
“Zone # off“  
“Zone # muted”  
“Zone # unmuted”  
"All channels muted"  
"All channels un-muted"  
"Zone # volume level = $$"  
You can connect any audio source as long as your  
connecting cable has a 3.5mm (1/8th”) termination or an  
adaptor on the other end. This includes, but isn’t limited  
to, CD players, media servers, tuners, feature phones,  
smartphones, iPods, laptops, desktop computers, tablets,  
mp3 players, Bluetooth receivers, etc.  
Volume Request (#vl?)  
Volume Set  
Volume All  
(#vl$$) "Zone # volume level set"  
(avl$$) "All volume levels  
successfully changed"  
Input Set  
Input Request  
(#sl$)  
(#sl?)  
"Zone # input set"  
"Zone # is currently using  
input channel $”  
Input Select All  
All Channels Off  
All Channels On  
(asl$)  
(aof)  
(aon)  
"All zones set to source $"  
"All zones turned off"  
“All zones turned on”  
“All zones volume levels  
increased”  
All Channels Vol up (avlu)  
All Channels Vol dn (avld) “All zones volume levels  
decreased”  
Channel Vol up  
(#vlu) “Zone # volume increased”  
Channel Vol down (#vld) “Zone # volume decreased”  
Bass adjustment (#b$)  
Treble adjustment (#t$)  
“Bass successfully set to $”  
“Treble successfully set to $”  
Message Examples e will use the example commands from  
before, and show what the responses are.  
Function  
Command Response Reply  
On/Off  
(1on)  
(1sl3)  
Zone 1 on  
Zone 1 input 3 set  
Select Input  
Set Volume  
Set Bass  
(1vl50) Zone 1 volume level = 50  
(1baf)  
Zone 1 Bass successfully set  
to 15  
Set Treble  
(2ta)  
Zone 2 Treble successfully  
set to 10  
Increase Volume (2vlu)  
Zone 2 volume increased  
BIB INPUT PLATE WITH BLUETOOTH  
The BIB is almost identical to the BIX above with added  
Bluetooth capability. Bluetooth is normally on and  
connected. When a jack is plugged into the AUDIO IN port  
Bluetooth is disabled and the signal from the 3.5mm jack is  
sent on the balanced line to the Q450 amplifier. BIB is an  
acronym for Balanced Input Bluetooth.  
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Correct polarity connections are important to maintain  
proper speaker phasing. When speaker phasing is correct,  
all speakers move in and out at the same time preserving  
the imaging and bass response of the program material.  
System Specifications  
Inputs  
Direct Inputs  
Balanced Inputs  
Control  
4 gold stereo RCA  
Run the wires to speaker locations. Do not coil any excess  
cable, as this may become an inductor that creates  
frequency response variations in your system. Lastly,  
connect the wires to the speakers, again being aware of  
proper polarity. Remember to connect the negative or  
black wire, to the matching terminal on the speaker. The  
positive or red wire should be connected to the matching  
terminal on the speaker.  
4 RJ45 from BIX or BIB  
1 RS232 nine pin port  
Not implemented  
Infrared  
Outputs  
Stereo amplifiers 4 x 50 watts 4-16 ohms  
Direct Outputs  
4 controlled gold stereo RCA  
System  
Frequency Response  
Operating Temp.  
Dimensions  
Weight  
After powering up the system, check the speakers to verify  
that they are operating properly.  
20 Hz to 20 kHz  
-20°C to 45°C (  
89 x 53 x 333 mm (3.5 x 2 x 13.2ʺ)  
820 g (1.81 lbs.)  
DC 24 V center pin +  
100-240 VAC 50-60 Hz  
R+ R- L- L+  
Power  
SPEAKER TERMINATION  
To ensure that the high quality signals produced by your  
amplifier are carried to your speakers without loss of  
clarity or resolution, Knoll advises that you use high-quality  
speaker wire. Many brands of wire are available the  
choice may be influenced by the distance between your  
speakers and the amplifier, the type of speakers you use,  
personal preferences, along with other factors.  
For safety reasons, if any wires are placed inside walls or  
ceilings, they may be required to be fire rated. Always  
check with local building officials.  
Note: While most speaker manufacturers follow industry  
convention of using red terminals for positive connections  
and black terminals for negative, some manufacturers may  
vary from this configuration. To ensure proper phase  
connections and optimal performance, consult the  
identification plate on our speaker terminals, or the  
speaker’s manual to verify polarity. Contact the speaker’s  
manufacturer if you do not know the polarity of your  
speakers.  
Regardless of the brand or type of speaker wire chosen,  
we suggest that you use a wire constructed of multi-strand  
copper with a gauge of 16 or less (the lower the number,  
the thicker the cable). 16 gauge wire may be used for runs  
up to 33’ (10 m). 14 -12 gauge wire is recommended for  
longer runs. We do not recommend that you use any wires  
with an AWG equivalent of 18 or higher due to the power  
loss and degradation in performance.  
A detachable plug is provided for each stereo channel  
output. Strip approximately ¼” (6 mm) of insulation from  
the end of each speaker wire and carefully twist the  
strands of each conductor together. Be sure not to cut the  
individual strands or twist them off. All strands must be  
used for optimal performance. Insert the wire into the  
plug and screw the screws very tight. Inspect that there  
are no stray wire “hairs” that can short circuit in the plug.  
8 - BROWN - REDUNDANT  
TIA/EIA - T568A  
7 - WHITE/BROWN - REDUNDANT  
6 - ORANGE - INFRARED  
5 - WHITE/BLUE - COMMON / GOUND / EARTH  
4 - BLUE - DC +12V  
3 - ORANGE/WHITE - REDUNDANT  
2 - GREEN - SYSTEM DATA  
1 - WHITE/GREEN - SYSTEM CLOCK  
Pin 1  
Cat 5/RJ45 Termination  
9
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exact same way as the Q450rs integrated amplifiers  
do.  
EXPANDING CAPABILITIES  
This will allow for fine tuning the output volume of  
your sub zone so there aren’t spots that are too loud  
or too quiet.  
The Q450rs sports some unique features that  
provide for larger and more sophisticated  
installations. To control any amplifier a larger zone  
will require additional equipment. This is an example  
that will allow the Q450rs’s flexibility to cater to  
larger spaces like bars, coffee shops and large zones  
like open design. Usually these are living room,  
dining room and kitchens. In a coffee shop, the  
kitchen staff can listen to different program material  
than the customers, for example. In bars, TV’s can  
have their own zones while customers playing pool  
can listen to music. An external amplifier or amplifiers  
can be used to extend a zone’s size.  
In this example, zone one has one speaker pair  
connected to the Q450rs. Zone 2 is the same.  
Zone 3 is connected to seven pairs of speakers. One  
pair is being driven directly from the Q450rs and the  
other 6 pairs by the lower KES600. The zone 3 total  
output power is 650 watts.  
Zone 4 is also connected to seven pairs of speakers.  
One pair is being driven directly from the Q450rs and  
the other 6 pairs by the upper KES600. The zone 4  
total output power is 650 watts.  
The layout below shows two 12 channel KES600  
amplifiers (50 watts per channel) powering up to 12  
pairs of speakers, significantly increasing the driving  
capability of this system.  
As you can see, the Q450rs is very versatile.  
We recommend an amplifier that will allow you to  
adjust the individual outputs like the KES600. Note  
that these sub zones are receiving the identical input  
that the Q450rs internal amp receives. The source,  
bass, treble and mute functions will behave in the  
AM/FM TUNER  
10  
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INSTALLATION  
Tools You Will Need  
INSTALLATION PROCEDURE  
Installing the Q450rs is intended to be a relatively  
easy procedure with no programming required.  
These tools are specific to Q450rs and more may be  
required depending on speakers and peripherals used.  
Part One - Planning  
Before installing we recommend you make an  
installation plan. This involves deciding where the  
speakers will go, and if you’re intending to, where to  
place the local zone inputs, or BIX as we call them  
and of course the various music sources. There are  
up to four pairs of speaker wire (one pair per zone)  
and up to four cat5 for the BIX/BIB’s.  
Screwdriver  
A small flat head screw driver with a blade that is about  
3.5mm (1/4”) is ideal. This is for terminating the speakers  
into the Q450rs speaker or Phoenix connector. Too big  
won’t fit in the opening, too small won’t allow for enough  
torque for a good seating of the speaker wire.  
Part Two - Prewire  
Wire Strippers  
Prewiring is a very important step. The effort you put  
into planning should make this step easier. When  
running wire, leave an extra 1m (3’) on both ends.  
Terminate all Cat5 wires with RJ45 connectors.  
Suitable for stripping speaker wire.  
Multi-meter or Impedance Meter  
This is required to avoid damage to Q450rs and the  
speakers and will save much time and frustration should a  
speaker wire be damaged during installation. Do it.  
Part Three Installation or Trim Out  
You should now install the speakers and install the  
wires in them. Take care to ensure the speaker wire  
polarity is correct (in phase), the wire is neat and no  
wire fibers are outside the connectors.  
Cat5/RJ45 Crimper Tool  
This must be top quality. The ‘Ideal’ by ‘Telemaster’ is a  
very good choice. Most calls to tech support are a result  
of poor connections caused by an inferior crimper tool  
used for cat5 termination.  
At the Q450rs terminate the speaker wires with the  
supplied connector. Check each speaker circuit for  
shorts and proper impedances. Take extra care at  
this step to ensure your twisted pairs are correctly  
routed and that the phasing is correct. A fault here  
can seriously damage Q450rs and its peripherals.  
Check this three times!  
Cat5 Tester  
Until we figure out how to see electricity, we need a way  
to ensure that it’s being transported correctly. A cat5  
tester that shows that not only continuity of the wire, but  
shows that they are going to the correct pins. This is very  
useful and highly recommended.  
Mount the Q450rs. Plug in all connectors except for  
the powers supply unit (PSU). Double check that the  
connectors are routed to the correct Q450rs  
terminals.  
Labeling Medium  
Some method to identify the different cables from one  
another and apart from other systems/networks. During  
installation other trades people can move or even remove  
the ends of long wires. Two labels on both ends can offer a  
little redundancy.  
Plug in a known working audio source directly to  
Q450rs. Preferably, use a source input that is not  
being used for a BIX. Plug in the Q450rs power  
supply. Check Q450rs to see that the power LED is  
illuminated. Press play on your known working audio  
source and head to your closest zone.  
Select the audio source on your control device you  
activated in previous step. Turn up volume and listen  
for signal. Check signal for distortion or clipping.  
Move to next zone, rinse, repeat until all zones are  
active.  
Note: It is important you know where you’ll run  
the various wires required operate Q450rs. You  
cannot run a cat5 or speaker cable parallel to a high  
voltage AC mains cable. This may cause problems  
with the operation of Q450rs. Q450rs needs to be a  
safe distance, about 1m (3’) from any large AC  
motors, like in an air conditioner or fridge/freezer, or  
breaker panels.  
Bring a known working audio source to BIX locations  
to test for signal. After completing this test, perform  
the same test on BIX/BIB in other zones. Grab a soda  
and pat yourself on the back. Throw on a tune and  
enjoy your hard work.  
11  
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TROUBLESHOOTING  
LIMITED WARRANTY  
Knoll Systems (“Knoll”) warrants that each Q450rs (“the Product”) sold  
hereunder will conform to and function in accordance with the written  
specifications of Knoll. Said limited warranty shall apply only to the first  
person or entity that purchases the Product for personal or business use  
and not for the purpose of distribution or resale. Said warranty shall  
continue for a period of three years from the date of such purchase.  
Accessories such as remote control, keypads and balanced input plates  
when sold with or without Knoll amplifiers or controller amplifiers have a  
warranty that shall continue for a period of one year from the date of such  
purchase. Knoll does not warrant that the Product will meet the specific  
requirements of the first person or entity that purchases the Product for  
personal or business use. Knoll’s liability for the breach of the foregoing  
limited warranty is limited to the repair or replacement of the Product or  
refund of the purchase price of the Product, at Knoll’s sole option.  
Replacement Product may be re-furbished in “like-new” condition, at  
Knoll’s sole discretion. To exercise the Purchaser’s rights under the  
foregoing warranty, the Product must be returned at the Purchaser’s sole  
cost and expense, to Knoll or to any authorized Knoll service center  
provided, and the Product must be accompanied by a written letter  
explaining the problem and which includes (i) proof of date of purchase; (ii)  
the dealer’s name; and (iii) the model and serial number of the Product.  
When sending your unit in for repair, please ship your unit in its original  
packing material or a Knoll approved ATA Shipping Case, or have a  
professional packaging company pack the unit. Please insure your shipment  
for its full value. A return authorization number, issued by the Knoll  
customer service department, must also be clearly displayed on the outside  
of the shipping carton containing the Product.  
No Q450rs Power  
1. Observe LED on Q450rs is on.  
2. Check to see if Q450rs is plugged in.  
3. Test AC outlet with a lamp to see if it is active.  
Q450rs led on but no sound  
1. Ensure the source input is connected to the  
input selected and the source is playing.  
2. If a BIX or BIB balanced input plate is being  
used, inspect and if necessary test the cat5  
cable with a cat5 tester.  
3. If the cable tests correctly try connecting the  
source directly to the corresponding Stereo  
source input on the Q450rs. If it works then  
something is wrong with the BIX/BIB plate or its  
wiring.  
4. Make sure the controlling devise is properly  
installed with the correct app and hardware.  
Sound is distorted  
1. Try turning down the sound source volume  
(example: iPod) and turning up the Q450rs  
volume.  
Note: Remanufactured Products are exempt from the foregoing Limited  
Warranty. Please refer to the Remanufactured Product Warranty for  
applicable warranty information.  
2. Turn down zone volume.  
3. Check the speaker impedance with a multi-  
meter to make sure it is not short circuited or  
partially short circuited.  
4. Check speakers for damage or for loose  
material in cavity.  
WARRANTY LIMITATION AND EXCLUSION Knoll shall have no further  
obligation under the foregoing limited warranty if the Product has been  
damaged due to abuse, misuse, neglect, accident, unusual physical or  
electrical stress, unauthorized modifications, tampering, alterations, or  
service other than by Knoll or its authorized agents, causes other than from  
ordinary use or failure to properly use the Product in the application for  
which said Product is intended.  
DISCLAIMER OF UNSTATED WARRANTIES THE WARRANTY PRINTED ABOVE  
IS THE ONLY WARRANTY APPLICABLE TO THIS PURCHASE. ALL OTHER WAR-  
RANTIES, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE  
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A  
PARTICULAR PURPOSE ARE DISCLAIMED. THERE ARE NO WARRANTIES THAT  
EXTEND BEYOND THE FACE HEREOF AND THE FOREGOING WARRANTY  
SHALL NOT BE EXTENDED, ALTERED OR VARIED EXCEPT BY WRITTEN  
INSTRUMENT SIGNED BY KNOLL. SOME STATES DO NOT ALLOW  
LIMITATIONS ON HOW LONG AN IMPLIED WARRANTY MAY LAST, SO SUCH  
LIMITATIONS MAY NOT APPLY TO YOU.  
LIMITATION OF LIABILITY IT IS UNDERSTOOD AND AGREED THAT KNOLL’S  
LIABILITY WHETHER IN CONTRACT, IN TORT, UNDER ANY WARRANTY, IN  
NEGLIGENCE OR OTHERWISE SHALL NOT EXCEED THE RETURN OF THE  
AMOUNT OF THE PURCHASE PRICE PAID BY PURCHASER AND UNDER NO  
CIRCUMSTANCES SHALL KNOLL BE LIABLE FOR SPECIAL, INDIRECT,  
INCIDENTAL OR CONSEQUENTIAL DAMAGES OR LOST PROFITS, LOST  
REVENUES OR LOST SAVINGS. THE PRICE STATED FOR THE PRODUCT IS A  
CONSIDERATION IN LIMITING KNOLL’S LIABILITY. NO ACTION, REGARDLESS  
OF FORM, ARISING OUT OF THE AGREEMENT TO PURCHASE THE PRODUCT  
MAY BE BROUGHT BY PURCHASER MORE THAN ONE YEAR AFTER THE  
CAUSE OF ACTION HAS ACCRUED. SOME STATES DO NOT ALLOW THE  
EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES  
SO THE ABOVE LIMITATION OR EXCLUSION MAY NOT APPLY TO YOU. THIS  
LIMITED WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS, AND YOU MAY  
ALSO HAVE OTHER RIGHTS WHICH VARY FROM STATE-TO-STATE.  
12  
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