Onkyo Stereo Amplifier RDA 71 User Manual

Seven Channel Amplifier  
RDA-7.1  
Instruction Manual  
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Features  
Contents  
I RDA-7.1 was designed by Balanced Audio  
Technology in USA. They are known for  
producing superbly engineered, meticulously  
crafted products that recreate music with  
unmatched fidelity and accuracy.  
Before using  
Important Safety Instructions .........................2  
Features ..............................................................3  
Contents..............................................................3  
Precautions .........................................................4  
Supplied accessories ..........................................6  
I THX® Ultra2 Certified  
I THX Surround EX™ Capable (7 Channels)  
I Over 1000 Watts of Total Output Power  
(150W × 7Ch)  
Unpacking and storing  
the packing materials ........................................6  
I Low-Negative Feedback Design for Optimum  
Signal-to-Noise Performance and Superior  
Dynamic Contrasts  
Installation .........................................................7  
I Balanced XLR Inputs for Better Frequency  
Response, Dynamic Range and Stability on  
long Cable Runs  
Operations  
Quick operation guide ......................................8  
Front panel facilities .........................................9  
I High-Current Driver Stage for the Finest  
Performance from Any Loudspeaker  
Connections  
I 3 Gain Stages to Minimize Signal Correlation  
and Improve the Amplifier’s Sonic Neutrality  
Rear panel facilities and connections ............10  
Connecting speakers .......................................12  
Connecting to the RDC-7.1 ............................13  
I Wide Range Design to Ensure the Full Sonic  
Benefits from the Latest High-Resolution  
Source  
I Massive, High-Quality, Dual 1kVA toroidal  
Appendix  
Transformers  
I Low Impedance Design with Thick Copper  
Cautions regarding humming noise ..............14  
Troubleshooting guide.....................................15  
Specifications ...................................................15  
Bus Bar  
I 600 Joules of Energy Storage to Provide  
Virtually Unlimited, Extremely Clean Power  
to Even the Most Demanding Loudspeaker  
Loads and Configurations  
I Gold Plated High Quality Transparent  
Speaker Terminals Compatible with Banana  
Plugs  
THX Ultra2  
Before any home theatre component can be THX  
Ultra2 certified, it must pass a rigorous series of  
quality and performance tests. Only then can a  
product feature the THX Ultra2 logo, which is your  
guarantee that the Home Theatre products you  
purchase will give you superb performance for many  
years to come. THX Ultra2 requirements define  
hundreds of parameters, including power amplifier  
performance, and pre amplifier performance and  
operation for both digital and analog domains. THX  
Ultra2 receivers also features proprietary THX  
technologies which accurately translate film  
soundtracks for home theater playback.  
I Rigidly Aluminum Front Panel and Brazen  
Stabilizer  
*
is Trademark of Balanced Audio  
Technology.  
* Ultra2 and THX are trademarks or registered  
trademarks of THX Ltd.  
3
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Precautions  
The wire which is coloured blue must be connected to the  
terminal which is marked with the letter N or coloured  
black.  
CAUTION:  
RISK OF FIRE-REPLACE FUSE AS MARKED  
T10A L  
The wire which is coloured brown must be connected to  
the terminal which is marked with the letter L or coloured  
red.  
ATTENTION:  
250V  
_
_
V
A
RISK DE D'INCEDIE-  
REMPLASER PAR UN FUSIBLE INDIQUE  
IMPORTANT  
The fuse symbol, within an equilateral triangle on the rear  
panel, is intended to alert the user to always replace the  
fuse with a fuse of the same type. The Tin T10A refers  
to time lag, the 10Arefers to a current rating of 10  
amperes and Lrefers to low breaking. The fuse type  
depends on the power supply used for your model. For  
A 13 ampere fuse is fitted in this plug. Should the fuse  
need to be replaced, please ensure that the replacement  
fuse has a rating of 13 amperes and that it is approved by  
ASTA or BSI to BS1362. Check for the ASTA mark or  
the BSI mark on the body of the fuse.  
IF THE FITTED MOULDED PLUG IS UNSUITABLE  
FOR THE SOCKET OUTLET IN YOUR HOME THEN  
THE FUSE SHOULD BE REMOVED AND THE PLUG  
CUT OFF AND DISPOSED OF SAFELY. THERE IS A  
DANGER OF SEVERE ELECTRICAL SHOCK IF THE  
CUT OFF PLUG IS INSERTED INTO ANY 13  
AMPERE SOCKET.  
details on the fuse rating, refer to Fuseon page 11.  
For replacing the fuse, make sure to contact your Integra/  
Onkyo authorized service center or your Integra Research  
dealer.  
For Canadian model  
For models having a power cord with a polarized plug:  
If in any doubt, please consult a qualified electrician.  
Declaration of Conformity  
CAUTION: TO PREVENT ELECTRIC SHOCK,  
MATCH WIDE BLADE OF PLUG TO WIDE SLOT,  
FULLY INSERT.  
We,  
ONKYO EUROPE  
Modele pour les Canadien  
ELECTRONICS GmbH  
LIEGNITZERSTRASSE 6,  
82194 GROEBENZELL,  
GERMANY  
Sur les modèles dont la fiche est polarisée:  
ATTENTION: POUR ÉVITER LES CHOCS  
ÉLECTRIQUES, INTRODUIRE LA LAME LA PLUS  
LARGE DE LA FICHE DANS LA BORNE  
CORRESPONDANTE DE LA PRISE ET POUSSER  
JUSQUAU FOND.  
declare in own responsibility, that the ONKYO product  
described in this instruction manual is in compliance with the  
corresponding  
technical standards such as EN60065,  
EN55013, EN55020 and EN61000-3-2, -3-3.  
GROEBENZELL, GERMANY  
I. MORI  
ONKYO EUROPE ELECTRONICS GmbH  
For British model  
Replacement and mounting of an AC plug on the power  
supply cord of this unit should be performed only by  
qualified service personnel.  
IMPORTANT  
The wires in the mains lead are coloured in accordance  
with the following code:  
Green-and-Yellow : earth  
Blue : neutral  
Brown : live  
As the colours of the wires in the mains lead of this  
apparatus may not correspond with the coloured markings  
identifying the terminals in your plug, proceed as follows:  
The wire which is coloured green and yellow must be  
connected to the terminal in the plug which is marked  
with the letter E or by the earth symbol , or coloured  
green or green and yellow.  
4
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Precautions  
Before using the RDA-7.1 power amplifier, be sure to  
read the page above entitled Important Safety  
Instructions and this page of precautions.  
not use rough material, thinners, alcohol or other  
Chemical solvents or cloths since these could damage the  
finish or remove the panel lettering.  
Whenever performing maintenance on the RDA-7.1, any  
of its supplied accessories, or any device connected to it,  
do not use solvents or cleaners of any kind that are  
inflammable or combustible.  
Power cord  
The RDA-7.1 comes with a three-pronged power cord  
that contains a grounding wire. To help prevent electrical  
shocks, always insert all three prongs when plugging in  
the power cord. If the plug of the power cord is not  
properly plugged in all the way, it may lead to an  
electrical shock.  
Other  
Below is a list of actions that you should never perform.  
Never perform a thumb test(checking whether  
current is reaching the lead wire on the hot end of the  
input by touching it with your fingers) on the ends of  
the input jacks or input cables. Doing so may damage  
the speakers.  
Be sure to only use wall sockets that properly fit the plug  
of the power cord. If the socket does not match the plug of  
the power cord, you will need to prepare an adapter.  
Always use an adapter that is properly certified for this  
application.  
Never short-circuit an output terminal.  
WARNING:  
Never remove the cover of the RDA-7.1.  
Furthermore, never operate the RDA-7.1 when the  
cover is removed for any reason.  
THIS APPARATUS MUST BE EARTHED.  
Never operate the RDA-7.1 in environments with  
explosive gases or materials.  
AC fuse  
Do not install the RDA-7.1 in a location within the  
reach of small children.  
Never plug the power-supply cord while the fuses  
installed on the RDA-7.1 are removed.  
For replacing the fuse, make sure to contact your Integra/  
Onkyo authorized service center or your Integra Research  
dealer.  
Lightning storms  
Never touch the power cord or plug of the RDA-7.1  
during a lightning storm.  
Speakers  
Power  
Connected speakers should have an impedance of 4 ohms  
or greater. If speakers with an impedance of less than 4  
ohms are connected, it may damage the RDA-7.1.  
WARNING:  
BEFORE PLUGGING IN THE UNIT FOR THE  
FIRST TIME, READ THE FOLLOWING SECTION  
CAREFULLY.  
Ventilation  
The RDA-7.1 is a high-power amplifier, so the internal  
temperature of the device rises to a high temperature.  
Therefore, place the RDA-7.1 in a location where the  
flow of air around the device is good. Also, do not place  
objects or other system components on top of the RDA-  
7.1 or block the ventilation holes in any way. This may  
cause the internal temperature to rise and lead to a  
malfunction or damage the internal components.  
The voltage of the available power supply differs  
according to country or region. Be sure that the power  
supply voltage of the area where this unit will be used  
meets the required voltage (e.g., AC 120V, 60Hz)  
Warranty Claim  
You can find the serial number on the rear panel of this  
unit. In case of warranty claim, please report this number.  
Care  
From time to time you should wipe the front and rear  
panels and the cabinet with a soft sloth. For heavier dirt,  
dampen a soft cloth in a weak solution of mild detergent  
and water, wring it out dry, and wipe off the dirt.  
Following this, dry immediately with a clean cloth. Do  
Recording Copyright  
Recording of copyrighted material for other than personal  
use is illegal without permission of the copyright holder.  
5
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Thank you for purchasing an Integra Research  
Seven Channel Amplifier.  
Please read this manual thoroughly before  
making connections and plugging in the unit.  
Following the instructions in this manual will  
enable you to obtain optimum performance and  
Unpacking and storing  
the packing materials  
Unpacking  
listening enjoyment from your new Seven When unpacking the RDA-7.1, be sure to remove all  
accessories from the cardboard box and then check that  
all are included and none are missing.  
Channel Amplifier. Please retain this manual  
for future reference.  
Inner carton  
Supplied accessories  
Check that the following accessories are supplied with the  
RDA-7.1.  
Outer carton  
(Shipping carton)  
Power cord × 1  
The power cord may differ  
depending on the region.  
Pad  
Poly bag  
Pad  
Inner carton  
Stereo mini-plug cable × 1  
(for connecting the 12V TRIGGER IN  
jack to the AV controller that have a  
12V Trigger output jack)  
Removing the RDA-7.1  
After removing the RDA-7.1, carefully inspect it to make  
sure that it has not been damaged during the shipping  
processes. If damaged, contact an Onkyo service station  
or representative immediately. Also, take down the name  
of the carrier in case it is necessary to obtain  
compensation from the carrier service.  
Instruction Manual  
Power cord  
and Stereo  
mini-plug cable  
Poly bag  
Storing the packing materials  
After unpacking, store the cardboard box and packing  
materials in a safe place; do not throw them away. If you  
are to transport the RDA-7.1 at a later date, you will need  
this cardboard box and the packing materials. The RDA-  
7.1 is very heavy and may become damaged if it is  
transported in a different box.  
Inner carton  
6
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Installation  
Preventing excessive rise in the internal temperature  
of the RDA-7.1 is vital to the long operational life of  
the equipment. This will also help prevent trouble at  
the RDA-7.1 from damaging other connected  
components. Therefore, it is important to choose a  
location with excellent ventilation for installation.  
Ventilation  
During normal household use of the RDA-7.1, only its  
internal heatsink becomes warm. However, if used with  
low impedance speakers at high volume levels, the  
internal temperature level will rise higher than usual.  
These high internal temperatures may cause damage to  
the internal components.  
To prevent damage from occurring due to high internal  
temperatures, it is vital to have proper ventilation and  
passage of air to carry out the heat and keep the internal  
temperature within acceptable ranges.  
Caution  
Do not place the RDA-7.1 inside cabinets or closets  
where there is poor passage of air and ventilation.  
Do not place the RDA-7.1 near external heat sources  
such as heaters or hot air ducts.  
Do not place other components or object on top of the  
RDA-7.1.  
The cover of the RDA-7.1 contains ventilation holes  
to allow the passage of air. Do not cover or block  
these holes in any way.  
If you are planning to place it within a cabinet, either open  
holes in the rear panel of the cabinet to improve  
ventilation or use a fan to force air circulation.  
As a general rule, if during idling the cover is too hot to  
touch, then ventilation needs to be improved.  
Installation location and space  
The RDA-7.1 is an extremely heavy piece of equipment.  
Make sure that the floor or cabinet or rack where it will be  
located is strong enough to support its weight.  
You will also need to leave enough space behind the  
RDA-7.1 to allow room for the power cord and other  
cables for connecting system components. A minimum of  
three inches (8 cm) is required behind the RDA-7.1 to  
allow room for the cables and cords without excessively  
bending them.  
7
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Quick operation guide  
Here is a quick guide for those who want to listen to  
music or view their favorite movies as soon as  
possible. Connections and operations are explained  
briefly here for the purpose of just getting you started.  
1. Lower the volume at the AV controller.  
Lower the volume of the AV controller to the minimum  
so that when the RDA-7.1 is turned on, you do not hear  
loud unwanted sounds.  
For those of you who want to operate the RDA-7.1  
right away, follow the guide below. However, this  
instruction manual contains a great deal of other  
information that you should know for the proper  
operation of the RDA-7.1 and for a more pleasurable  
experience with the RDA-7.1. Be sure to read the rest  
of this manual as well after reading this quick guide.  
2. Connect the speakers to the RDA-7.1.  
Connect the speakers to the RDA-7.1 using the proper  
speaker cables. Be sure not to mix the left and right  
channels and positive (+) and negative () polarities. If  
the connections are mistaken, the correct orientation will  
not be obtained and left-right phasing will be reversed.  
The procedures given in this section assume that the  
other system components are already connected. (For  
example, that the source components are already  
connected to the AV controller or pre-amplifier.)  
3. Select balanced input (XLR) or  
unbalanced input (RCA) with the INPUT  
SELECT switch.  
The RDA-7.1 possesses a balanced input (XLR) and  
unbalanced input (RCA) for each channel and the switch  
for the two is located between the two input terminals.  
Select the proper input type depending on the functionality  
of the connected cables and AV controller.  
For perfect sound reproduction  
This unit uses no relay in its output circuit for perfect  
quality sound reproduction. This, however, may also  
result in the reproduction of noise-prone signals from  
each channel until the internal circuitry becomes  
stabilized. To prevent this, you should normally preheat  
the unit for more than 15 minutes until the sound quality  
becomes stabilized. We recommend that, after turning the  
power on, you leave the unit for more than 30 minutes and  
enjoy playing your favorite music or movies when the  
internal circuitry becomes stabilized.  
Note:  
Do not change the INPUT SELECT switch setting when  
the RDA-7.1 is turned on.  
4. Connect the AV controller to the RDA-7.1.  
After selecting the correct input type in step 3 above,  
connect the output from the AV controller to the  
corresponding input terminal on the RDA-7.1.  
Note:  
Do not connect anything to the other input jack.  
5. Connect the supplied power cord to the  
RDA-7.1 and to the wall power outlet.  
Be sure to properly plug the power cord all the way in.  
6. Press the POWER switch.  
When you press the Power switch, the On indicator lights  
blue. If a cable is connected to the 12V TRIGGER IN  
terminal, the On indicator lights blue when there is a  
signal and the Standby indicator lights red when there is  
no signal.  
7. Slowly increase the AV controller volume.  
Note:  
After the RDA-7.1 is turned on, it takes approximately 9  
seconds before the output stabilizes. During this time, do  
not turn up the volume.  
Now all that remains is to control the AV controller and  
the other connected system components and enjoy your  
music or movies.  
8
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Front panel facilities  
On  
Power  
On Off  
Standby  
Seven Channel Amplifier RDA-7.1  
Power  
On /  
Off  
On/Standby  
Pressing this switch connects the RDA-7.1 to the main  
Power outlet and the On indicator lights blue. Sound will  
be heard after approximately 9 seconds. If you want to  
operate the RDA-7.1 using a 12-volt trigger, connect to  
the 12V TRIGGER OUT terminal of AV controller or pre  
amplifier to the 12V TRIGGER IN terminal of the RDA-  
7.1, and leave the Power switch of the RDA-7.1 set to On.  
The RDA-7.1 is equipped with two indicators to display  
its status. If both indicators are off, then the main Power  
switch on the front panel is turned off. If the Power switch  
is turned on, then one of these indicators will be lit.  
On: Lights blue when Power is supplied from the AC  
mains Power supply, or signal is input from the 12V  
TRIGGER IN terminal.  
For example, to control the RDA-7.1 while it is connected  
to the RDC-7.1 AV controller, connect the 12V  
TRIGGER OUT E jack of the RDC-7.1 to the 12V  
TRIGGER IN jack of the RDA-7.1 with the supplied  
stereo mini-plug cable.  
Standby: Lights red when no signal is input from the  
12V TRIGGER IN terminal and the RDA-7.1 is in the  
Standby state.  
Note:  
If the Power switch is pressed and neither indicator lights,  
check that the Power cord is properly connected and that a  
fuse has not blown. If the indictors still do not light, turn  
off the RDA-7.1, disconnect the Power cord, and contact  
an Onkyo service station or representative.  
If a plug is connected to the 12V TRIGGER IN jack:  
The signal reaches the 12V TRIGGER, the On indicator  
lights blue. When there is no signal at the 12V TRIGGER,  
the Standby indicator lights red.  
If the On indicator lights blue and the Standby indicator  
flashes red, the protection circuitry of the RDA-7.1 has  
activated. The protection circuitry activates if a problem  
such as a speaker cable shorting or the temperature of the  
RDA-7.1 rising excessively occurs. Turn off the RDA-  
7.1, remove the cause of the problem, and then turn the  
RDA-7.1 back on. If the problem is still not solved, turn  
off the RDA-7.1, disconnect the power cord, and contact  
an Onkyo service station or representative.  
9
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Rear panel facilities and connections  
Caution  
Do not connect the Power cord until you have finished all other connections.  
Read the instructions that came with the other components you are connecting.  
Do not make connections to input or output jacks while the RDA-7.1 is turned on (Power  
Always turn the volume of the AV controller down before turning on the RDA-7.1.  
on).  
SURROUND  
RIGHT  
FRONT  
RIGHT  
FRONT  
LEFT  
SURROUND  
LEFT  
SURROUND BACK  
LEFT  
SURROUND BACK  
RIGHT  
CENTER  
INPUT  
SELECT  
INPUT  
SELECT  
INPUT  
SELECT  
INPUT  
SELECT  
INPUT  
SELECT  
INPUT  
SELECT  
INPUT  
SELECT  
OUTPUT  
OUTPUT  
OUTPUT  
OUTPUT  
OUTPUT  
OUTPUT  
OUTPUT  
SPEAKER IMPEDANCE  
OHMS MIN. PER EACH  
4
SPEAKER TERMINAL  
FUSE  
AC INLET  
12V TRIGGER  
SEVEN CHANNEL AMPLIFIER  
MODEL NO. RDA-7.1  
IN  
OUT  
2. Disconnecting the input terminal  
Pull out the connection cord while holding down the lever.  
Push  
Precaution for connection  
This unit comprises 7 independent power amplifiers, each  
being capable of reproducing the same quality sound  
through its channel. Note that you should connect an input  
source and a speaker to each channel in use. For channels  
that are not in use, we recommend that you do not connect  
any input source or speaker.  
Note:  
When using this balanced connection for a specific  
channel between the AV controller and RDA-7.1, set  
the INPUT SELECT switch to the XLR input side to  
select balanced input. Next, use balanced cables and  
connect the balanced output from the AV controller to  
the corresponding balanced input on the RDA-7.1.  
Do not connect anything to the RCA-type audio input  
jack.  
Balanced Input (XLR terminal)  
Connect AV controllers or pre amplifiers with balanced  
outputs for high-quality sound.  
2. non-inverting (+)  
1. GND  
Unbalanced Input (single end RCA  
input)  
Connect AV controllers or pre amplifiers with single-  
ended outputs for high-quality sound.  
2
1
3
3. inverting (–)  
Connector ground terminal: Chassis grounded  
Note:  
When using this single-ended connection for a  
specific channel between the AV controller and  
RDA-7.1, set the INPUT SELECT switch to the RCA  
input side to select unbalanced input. Next, use RCA  
cables and connect the single-ended output from the  
AV controller to the corresponding single-ended  
input on the RDA-7.1.  
The pin assignments for this terminal are given above. This  
pin assignment conforms to the standard adopted by the  
Audio Engineering Society. Refer to the instruction manual  
supplied with the AV controller and verify that its output  
terminal is compatible with the pin assignments for this  
terminal. If it does not, wire it so that the output pins  
connect with the proper input pins.  
Do not connect anything to the balanced input jack.  
Input terminal  
1. Connecting the input terminal  
Match the pins and insert the terminal until you hear a  
click.Ensure that it is secure by gently pulling it.  
INPUT SELECT  
/
This switch is located between the balanced input and  
single-ended RCA input for each channel. Use this switch  
to select the input type for its channel.  
10  
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Rear panel facilities and connections  
Note:  
Warning  
Do not change the INPUT SELECT switch setting  
when the RDA-7.1 is turned on.  
Make sure that connections have been made only to the  
inputs selected with the INPUT SELECT switches and  
nothing is connected to the other ones.  
Before replacing the fuse or making any electrical  
connections, always turn off the Power and disconnect the  
Power cord.  
12V TRIGGER IN/OUT  
+ OUTPUT – (Speaker output)  
(Binding post)  
Connect the 12V TRIGGER IN jack to AV controller that  
have a 12V TRIGGER output jack, such as the RDC-7.1.  
This jack works on between 5 to 12 volts DC. With the  
Power switch of the RDA-7.1 set to On, you can switch  
the RDA-7.1 between the On and Standby states with  
operations at the AV controller.  
The RDA-7.1 is equipped with high-current binding posts  
for use at output terminals to the speaker system. To  
obtain the best in sound quality from the RDA-7.1, we  
recommend the use of high-quality speaker cables.  
If you want another component to be activated by turning  
on and off the AV controller connected to the 12V  
TRIGGER IN jack of the RDA-7.1, then connect the 12V  
TRIGGER input jack of that component to the 12V  
TRIGGER OUT jack of the RDA-7.1. In this state, even if  
the RDA-7.1 is turned off, the signal from the AV  
controller passes through the RDA-7.1 and goes out the  
12V TRIGGER OUT jack. Daisy chaining is also  
possible using these jacks.  
For each channel, connect the negative output post to the  
negative input terminal of the speaker and the positive  
output post to the positive input terminal of the speaker.  
Make the connections following the procedure given below.  
5/8 inch  
1. Strip away 5/8 inch  
(15 mm) of wire  
insulation.  
2. Twist wire ends very  
tight.  
1
2
(15 mm)  
3
4
5
Use φ1/8-inch (3.5-mm) monaural-type mini-jack  
connectors or supplied stereo mini-plug cable. The tip  
polarity of the connector is positive.  
3. Unscrew  
4. Insert wire  
5. Screw  
AC INLET  
Plug the supplied Power cord into this AC INLET and  
then into the Power outlet on the wall,  
Be sure to read Phasing your speaker systemand  
Speaker ratingson page 12.  
Caution  
AC INLET  
Do not connect any devices other than speakers to  
these terminals. Also, never short-circuit the output  
from these terminals.  
Be sure not to mistake the positive and negative  
outputs or the left and right speakers. Doing so will  
result in an unnatural sound space.  
Power cord (supplied)  
To an AC wall outlet  
Only connect speakers with an impedance of 4 ohms  
or greater. If a speaker with an impedance of less than  
4 ohms is connected, it may damage the RDA-7.1.  
Do not use a Power cord other than the one supplied  
with the RDA-7.1. The Power cord supplied is  
designed for use with the RDA-7.1 and should not be  
used with any other device.  
Do not connect more than one speaker cable to one  
output terminal. Doing so may damage the RDA-7.1.  
Never have the Power cord disconnected from the  
RDA-7.1 while the other end is plugged into the wall  
outlet. Doing so may cause an electric shock. Always  
connect by plugging into the wall outlet last and  
disconnect by unplugging from the wall outlet first.  
Fuse  
The RDA-7.1 uses a 250V AC slow-blow (time lag) main  
fuse. To replace the fuse, insert a coin or similar object  
into the groove, turn it to the left, and remove the fuse.  
Replace only with the same type and same rating. The  
correct fuse rating will differ depending on the voltage of  
your set as given here.  
Ground  
If connecting the unit to another equipment causes noise  
such as a hum, you may improve the reproduced sound  
quality by connecting this terminal to the grounding  
terminal of the connected equipment with a lead wire.  
Power Supply  
120V  
Fuse Rating  
15A/250V  
220V/230V/240V  
T10A L/250V  
11  
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Connecting speakers  
Before connecting the speakers, place them correctly by consulting the instruction manuals that came with them.  
Also, read  
on page 11.  
For surround playback, the configuration and placement of your speakers are very important.  
Phasing your speaker system  
Speaker ratings  
If the speakers are not correctly connected, the phasing  
may be reversed. The result is an audio output with a  
strange feeling and indistinct positioning of the sound  
source.  
In actuality, you can connect any type of speaker to the  
RDA-7.1 and it will operate. The RDA-7.1 can operate  
low-impedance speakers with Power levels that exceed  
optimum levels with no problem. With many of the  
speakers that are nominally rated with an impedance of 4  
ohms, their impedance may lower down to 2 ohms within  
a specific frequency range. You should not experience  
any problems at these low impedances unless you demand  
excessively high volume levels.  
To obtain an accurate bass response, all channels must be  
connected in-phase. When the tone of a single note is  
output, if the speakers are in-phase, the speakers will  
vibrate in unison. If the speakers are properly connected  
in-phase, then the positioning (of the instrument, singer,  
etc.) becomes clear. And if they are out of phase, then the  
positioning becomes unclear for a sound space with a  
strange feeling.  
Since the output performance of the RDA-7.1 is  
extremely high, it is vital that the maximum ratings for the  
input Power of the speaker system be checked. To avoid  
damage to the speakers, the Power ratings for the speakers  
must be equal to or greater than the output Power rating (4  
ohms) of the RDA-7.1 for the corresponding impedance.  
If this is the case, first check if the speaker cables are  
connected properly. The cables can usually be told apart  
by the colors, by different markings, or by colored lines  
on the cables. Use these marking to make sure that for  
each channel the binding posts (+) on the RDA-7.1 are  
connected to the (+) terminals on the speakers and the  
binding posts () on the RDA-7.1 are connected to the ()  
terminals on the speakers.  
Caution  
We will not be held responsible for any damage that may  
occur to your speaker systems or other components that  
result from the use of a speaker system with ratings that are  
lower than those of the RDA-7.1.  
If you want to connect a single speaker, do not  
connect it to several terminals.  
Do not connect more than one cable to each speaker  
terminal. Doing so may damage the RDA-7.1.  
To prevent damage to circuitry, never short-circuit  
the positive (+) and negative () speaker wire.  
SURROUND  
RIGHT  
FRONT  
RIGHT  
FRONT  
LEFT  
SURROUND  
LEFT  
SURROUND BACK  
LEFT  
SURROUND BACK  
RIGHT  
CENTER  
NO!  
INPUT  
SELECT  
INPUT  
SELECT  
INPUT  
SELECT  
INPUT  
SELECT  
INPUT  
SELECT  
INPUT  
SELECT  
INPUT  
SELECT  
OUTPUT  
OUTPUT  
OUTPUT  
OUTPUT  
OUTPUT  
OUTPUT  
OUTPUT  
+
+
+
+
R
L
R
L
SPEAKER IMPEDANCE  
OHMS MIN. PER EACH  
4
SPEAKER TERMINAL  
FUSE  
AC INLET  
12V TRIGGER  
SEVEN CHANNEL AMPLIFIER  
MODEL NO. RDA-7.1  
IN  
OUT  
Surround Surround Front Center  
Back Right Right Right Speaker Left  
Speaker Speaker Speaker Speaker Speaker Speaker  
Front  
Surround Surround  
Left Back Left  
12  
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Connecting to the RDC-7.1  
Since many users will purchase the RDA-7.1 together with the RDC-7.1, here is an explanation of how to connect  
the RDA-7.1 to the RDC-7.1.  
Balanced input/output connection  
Note:  
RDC-7.1  
(
)
(
)
ASSIGNABLE  
ASSIGNABLE  
When using the balanced  
inputs, do not connect  
anything to the RCA inputs.  
)
Balanced cable  
XLR type  
SUBWOOFER  
PRE OUT  
SURR BACK  
R
SURR  
R
FRONT  
R
CENTER  
FRONT  
L
SURR  
L
SURR BACK  
L
(
)
SINGLE  
A
At the RDC-7.1  
SURROUND  
RIGHT  
FRONT  
RIGHT  
FRONT  
LEFT  
SURROUND  
LEFT  
SURROUND BACK  
LEFT  
SURROUND BACK  
RIGHT  
CENTER  
INPUT  
SELECT  
INPUT  
SELECT  
INPUT  
SELECT  
INPUT  
SELECT  
INPUT  
SELECT  
INPUT  
SELECT  
INPUT  
SELECT  
At the RDA-7.1  
OUTPUT  
OUTPUT  
OUTPUT  
OUTPUT  
OUTPUT  
OUTPUT  
OUTPUT  
Push the INPUT SELECT  
switch upward  
SPEAKER IMPEDANCE  
OHMS MIN. PER EACH  
4
SPEAKER TERMINAL  
FUSE  
AC INLET  
12V TRIGGER  
IN OUT  
SEVEN CHANNEL AMPLIFIER  
MODEL NO. RDA-7.1  
RDA-7.1  
Connect to the RDC-7.1 12V TRIGGER OUT E terminal.  
(Use the supplied stereo mini-plug cable when making  
connection.)  
Unbalanced input/output connection RCA type cable  
Improper connection  
Inserted completely  
Note:  
L
L
When using the RCA inputs,  
do not connect anything to the  
balanced inputs.  
(
)
SINGLE  
CENTER  
R
R
FRONT  
SUB  
WOOFER  
RDC-7.1  
SURR  
SURR BACK  
(
ASSIGNABLE  
)
SURROUND  
RIGHT  
FRONT  
RIGHT  
FRONT  
LEFT  
SURROUND  
LEFT  
SURROUND BACK  
LEFT  
SURROUND BACK  
RIGHT  
CENTER  
Push the INPUT  
SELECT switch  
downward  
INPUT  
SELECT  
INPUT  
SELECT  
INPUT  
SELECT  
INPUT  
SELECT  
INPUT  
SELECT  
INPUT  
SELECT  
INPUT  
SELECT  
OUTPUT  
OUTPUT  
OUTPUT  
OUTPUT  
OUTPUT  
OUTPUT  
OUTPUT  
SPEAKER IMPEDANCE  
OHMS MIN. PER EACH  
4
SPEAKER TERMINAL  
FUSE  
AC INLET  
12V TRIGGER  
IN OUT  
SEVEN CHANNEL AMPLIFIER  
MODEL NO. RDA-7.1  
RDA-7.1  
Connect to the RDC-7.1 12V TRIGGER OUT E terminal.  
(Use the supplied stereo mini-plug cable when making  
connection.)  
13  
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Cautions regarding humming noise  
If humming is heard even when the volume is turned  
1. Your cable television system wiring  
down or the RDA-7.1 is turned off, then a ground  
loopmay be occurring. A ground loop is a potential  
difference in the grounding of two or more  
electrically connected components. This potential  
difference creates multiple current routes when there  
should only be one. This potential difference results  
in a hum noise and at times it can be just a low level  
noise. With the increased sophistication of home  
theaters, the chance of grounding loops occurring has  
greatly increased. If humming occurs, before  
considering it due to faulty equipment, read the  
following information listed to the right.  
may be causing the hum.  
To determine whether the cable television is the cause of  
the hum, disconnect the cable television cable (round 75-  
ohm cable) or the first component that the cable is  
connected to (the set-top box or VCR). If the humming  
stops, connect a commercially-available 75-ohm ground  
loop isolator before reconnecting the system. If the  
humming still continues, read 2, 3, and 4 below.  
2. An input cable is causing the hum  
Turn off the entire system and disconnect all input cables.  
If the humming stops, reconnect the cables one at a time  
to determine the faulty cable. If the hum continues after  
all input cables are reconnected, contact an Onkyo service  
station or representative.  
3. AC ground terminal loop  
An AC ground terminal loop will cause the loudest hum.  
When grounding a system that uses a power cord with a  
three-pronged plug, be aware of components with a  
grounding terminal. If you cannot alter your home wiring  
to an insulated star-shaped grounding configuration, try  
an insulation transformer.  
Caution  
Never remove the ground terminal (the third round  
terminal) from the plug of the power cord that comes with  
the RDA-7.1. Doing so is very dangerous for it may cause  
an electrical shock or even electrocution.  
4. Improper grounding in your home is  
causing the hum  
In most cases, a water pipe is used as the ground in your  
home. Make sure that the connection is strong by  
checking for loose pipes or excessive corrosion. The most  
certain remedy is to ground the system independently.  
Drive a 5-foot (1.5-m) or longer copper-plated steel  
grounding pole into the ground and use this as the system  
ground. If you have questions regarding this procedure  
consult an electrician or your local electrical company.  
If after exhausting all the possibilities given above the  
humming continues, contact an Onkyo service station or  
representative.  
5. Both the balanced-line inputs and RCA  
inputs are connected  
Unconnect either set and make sure the input selector  
switch is set to the correct position.  
14  
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Troubleshooting guide  
Specifications  
AMPLIFIER SECTION  
Number of channels:  
Power:  
If the RDA-7.1 fails to function normally, first check  
the following points before contacting your Integra  
Research dealer. If the problem is not solved after  
going through the following list, unplug the power  
cord and contact your Integra/Onkyo authorized  
service center.  
7
150 watts per channel min. RMS at 8 ohms, 2 channels  
driven from 20 Hz to 20 kHz with no more than 0.1 % total  
harmonic distortion (FTC).  
300 watts per channel min. RMS at 4 ohms, 2 channels  
driven at 1 kHz with no more than 0.1 % total harmonic  
distortion (FTC).  
350 W (EIAJ, 4 , 1 kHz, 10 %)  
POWER  
300 W (DIN, 4 , 1 kHz, 0.7 %)  
Frequency response at 3 dB:  
3.5 Hz - 250 kHz  
Input Impedance:  
47 kohm each phase  
Input signal for max output power: 1.2 V  
No power.  
Input Sensitivity (Unbalanced):  
Input Sensitivity (Balanced):  
THD:  
100 mVrms  
200 mV  
0.03 % (20 Hz to 20 kHz)  
40 at 8 ohm  
Power cord is not correctly plugged into AC outlet/  
Inlet.  
Damping Factor:  
© Plug the power cord into the AC outlet/Inlet  
Power consumption  
USA, Canada and some Asian model:  
15 A  
properly.  
Power switch is not set to ON position.  
Other models:  
10 A  
© Set the power switch to ON.  
Rated Speaker Impedance:  
4 ohms  
GENERAL  
Power Supply:  
Power turns on but no sound.  
AC 120 V, 60 Hz  
AC 230 V, 50 Hz  
AC 220 V, 50/60 Hz  
450 × 197 × 602 mm  
17-11/16" × 7-3/4"  
× 23-11/16"  
Incomplete connections.  
© Check speaker cable connections.  
© Insert all plugs firmly into jacks.  
Dimensions (W × H × D):  
Weight:  
52.5 kg, 115.7 lbs.  
No input signal from AV controller.  
© Check for input signal from AV controller.  
Specifications and features are subject to change without  
notice.  
Incorrect INPUT SELECT switch setting.  
© Set INPUT SELECT switch to correct setting.  
Power supply and voltage vary depending on the area in which  
the unit is purchased.  
The Standby indicator flashes.  
Protective circuitry activated.  
© A problem such as a speaker cable shorting or the  
temperature of the RDA-7.1 rising excessively  
may have occurred. Turn power off immediately,  
locate problem, and correct it.  
15  
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Integra Research Division of  
Sales & Product Planning Div. : 2-1, Nisshin-cho, Neyagawa-shi, OSAKA 572-8540, JAPAN  
Tel: 072-831-8023 Fax: 072-831-8124 http://www.onkyo.com/jp/  
Integra Research Division of  
ONKYO U.S.A. CORPORATION  
18 Park Way, Upper Saddle River, N.J. 07458, U.S.A.  
Tel: 201-785-2600 Fax: 201-785-2650 http://www.integraresearch.com  
ONKYO EUROPE ELECTRONICS GmbH  
Liegnitzerstrasse 6, 82194 Groebenzell, GERMANY  
Tel: +49-8142-4401-0 Fax: +49-8142-4401-555 http://www.onkyo.net  
E
n
Printed in Japan  
D0312-1  
ONKYO CHINA LIMITED  
Units 2102-2107, Metroplaza Tower I, 223 Hing Fong Road, Kwai Chung, N.T., HONG KONG  
Tel: 852-2429-3118 Fax: 852-2428-9039 http://www.onkyochina.com  
SN 29343637  
(C) Copyright 2003 ONKYO CORPORATION Japan. All rights reserved.  
* 2 9 3 4 3 6 3 7 *  
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