Integra Stereo Amplifier DTA 701 User Manual

DTA-70.1_En_100108.book Page 1 Friday, January 8, 2010 2:04 PM  
9-Channel Amplifier  
DTA-70.1  
Instruction Manual  
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Precautions  
1. Recording Copyright—Unless it’s for personal use  
only, recording copyrighted material is illegal with-  
out the permission of the copyright holder.  
For U.S. models  
FCC Information for User  
CAUTION:  
2. AC Fuse—The AC fuse inside the unit is not user-  
serviceable. If you cannot turn on the unit, contact  
the dealer from whom you purchased this unit.  
The user changes or modifications not expressly  
approved by the party responsible for compliance could  
void the user’s authority to operate the equipment.  
3. Care—Occasionally you should dust the unit all  
over with a soft cloth. For stubborn stains, use a soft  
cloth dampened with a weak solution of mild deter-  
gent and water. Dry the unit immediately afterwards  
with a clean cloth. Don’t use abrasive cloths, thin-  
ners, alcohol, or other chemical solvents, because  
they may damage the finish or remove the panel let-  
tering.  
NOTE:  
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 interfer-  
ence in a residential installation.  
This equipment generates, uses and can radiate radio fre-  
quency energy and, if not installed and used in accor-  
dance with the instructions, may cause harmful  
interference to radio communications. However, there is  
no guarantee that interference will not occur in a partic-  
ular installation. 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:  
4. Power  
WARNING  
BEFORE PLUGGING IN THE UNIT FOR THE  
FIRST TIME, READ THE FOLLOWING SEC-  
TION CAREFULLY.  
AC outlet voltages vary from country to country.  
Make sure that the voltage in your area meets the  
voltage requirements printed on the unit’s rear panel  
(e.g., AC 230 V, 50 Hz or AC 120 V, 60 Hz).  
The power cord plug is used to disconnect this unit  
from the AC power source. Make sure that the plug  
is readily operable (easily accessible) at all times.  
• Reorient or relocate the receiving antenna.  
• Increase the separation between the equipment and the  
amplifier.  
Pressing the [On/Standby] button to select Standby  
mode does not fully shutdown the unit. If you do not  
intend to use the unit for an extended period,  
remove the power cord from the AC outlet.  
• Connect the equipment into an outlet on a circuit dif-  
ferent from that to which the receiver is connected.  
• Consult the dealer or an experienced radio/TV techni-  
cian for help.  
5. Preventing Hearing Loss  
Caution  
Excessive sound pressure from earphones and head-  
phones can cause hearing loss.  
6. Batteries and Heat Exposure  
Warning  
For Canadian Models  
NOTE: THIS CLASS B DIGITAL APPARATUS  
COMPLIES WITH CANADIAN ICES-003.  
For models having a power cord with a polarized plug:  
CAUTION: TO PREVENT ELECTRIC SHOCK,  
MATCH WIDE BLADE OF PLUG TO WIDE SLOT,  
FULLY INSERT.  
Batteries (battery pack or batteries installed) shall  
not be exposed to excessive heat as sunshine, fire or  
the like.  
7. Never Touch this Unit with Wet Hands—Never  
handle this unit or its power cord while your hands  
are wet or damp. If water or any other liquid gets  
inside this unit, have it checked by the dealer from  
whom you purchased this unit.  
Modèle pour les Canadien  
REMARQUE: CET APPAREIL NUMÉRIQUE DE  
LA CLASSE B EST CONFORME À LA NORME  
NMB-003 DU CANADA.  
Sur les modèles dont la fiche est polarisée:  
ATTENTION: POUR ÉVITER LES CHOCS ÉLEC-  
TRIQUES, INTRODUIRE LA LAME LA PLUS  
LARGE DE LA FICHE DANS LA BORNE CORRE-  
SPONDANTE DE LA PRISE ET POUSSER  
JUSQU’AU FOND.  
8. Handling Notes  
• If you need to transport this unit, use the original  
packaging to pack it how it was when you origi-  
nally bought it.  
• Do not leave rubber or plastic items on this unit  
for a long time, because they may leave marks on  
the case.  
• This unit’s top and rear panels may get warm  
after prolonged use. This is normal.  
• If you do not use this unit for a long time, it may  
not work properly the next time you turn it on, so  
be sure to use it occasionally.  
3
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DTA-70.1_En_100108.book Page 4 Friday, January 8, 2010 2:04 PM  
Thank you for purchasing an Integra 9-Channel Ampli-  
fier. Please read this manual thoroughly before making  
connections and plugging in the unit.  
Features  
Following the instructions in this manual will enable you  
to obtain optimum performance and listening enjoyment  
from your new 9-Channel Amplifier.  
150 Watts per channel, minimum RMS into  
8 ohms, 2 channels driven, from 20 to  
20,000 Hz with no more than 0.05 % total  
harmonic distortion  
Please retain this manual for future reference.  
*1  
THX™ Ultra2™ certified  
WRAT–Wide Range Amplifier Technology  
(5 Hz-100 kHz bandwidth)  
Push-Pull amplification design with three-  
stage inverted Darlington circuitry  
Massive toroidal transformer  
Customized 22,000 µF large capacitors for  
effective power supply  
Audio-tuned reference capacitors for each  
channel  
Low-impedance, copper bus plates for  
perfect ground potential  
Gold-plated, XLR and machined, solid brass  
RCA input terminals  
Custom-designed large power transistors to  
drive high currents  
High-current, low-impedance circuit board  
by using thick copper foil (70 µ)  
Gold-plated, color-coded, transparent  
speaker posts  
Auto power-down function  
*2  
Multi-zone capability (up to Zone 3)  
*2  
Bi-amping capability  
12V trigger in  
Aluminum front panel  
Detachable power cord  
*1  
THX and Ultra2 are trademarks of THX Ltd. THX may be  
registered in some jurisdictions. All rights reserved.  
*2 Depends on AV controller  
4
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DTA-70.1_En_100108.book Page 5 Friday, January 8, 2010 2:04 PM  
Contents  
Supplied Accessories  
Check that the following accessories are supplied with  
the DTA-70.1.  
Before using  
Important Safety Instructions..................................... 2  
Precautions ............................................................... 3  
Features ....................................................................4  
Supplied Accessories................................................5  
Amplifier Precautions ................................................6  
Operations  
Quick Operation Guide..............................................7  
Front & Rear Panels..................................................8  
Front Panel............................................................ 8  
Rear Panel............................................................. 9  
Power cord  
(Plug type varies from country to country.)  
Connections  
Connecting the Amplifier ......................................... 11  
Connecting Your Speakers.................................. 11  
Connecting to an AV Controller  
with XLR output................................................. 13  
Connecting to an AV Controller  
with RCA output................................................ 14  
Bi-amping the Front Speakers............................. 15  
Multiroom Connections........................................ 16  
Mono mini-plug cable  
(For connecting to the 12V trigger terminals.)  
Appendix  
Troubleshooting....................................................... 18  
Specifications .......................................................... 19  
Speaker cable labels  
5
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DTA-70.1_En_100108.book Page 6 Friday, January 8, 2010 2:04 PM  
Amplifier Precautions  
Before using the DTA-70.1 power amplifier, be sure to  
read the page above entitled Important Safety Instruc-  
tions and this page of Amplifier Precautions.  
Speakers  
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 DTA-70.1.  
Ventilation  
While using the DTA-70.1, the internal temperature will  
fairly rise. Excessive temperature rise may affect the  
amplifier performance. To prevent damage from occur-  
ring 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.  
Care  
From time to time you should wipe the front and rear  
panels and the cabinet with a soft cloth. 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. Follow-  
ing this, dry immediately with a clean cloth. Do not use  
rough material, thinners, alcohol or other Chemical sol-  
vents or cloths since these could damage the finish or  
remove the panel lettering.  
Whenever performing maintenance on the DTA-70.1,  
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.  
Caution  
• Do not place the DTA-70.1 inside cabinets or closets  
where there is poor passage of air and ventilation.  
• Do not place the DTA-70.1 near external heat sources  
such as heaters or hot air ducts.  
• Do not place other components or object on top of or  
under the DTA-70.1.  
• The cover of the DTA-70.1 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.  
When you clean the input/output terminals on the rear  
panel, do not use contact restorer. Doing so may cause  
resin deterioration.  
Other  
As a general rule, if during idling the cover is too hot to  
touch, then ventilation needs to be improved.  
Below is a list of actions that you should never perform.  
Do not use the DTA-70.1 as a broadcast system or  
musical instrument amplifier.  
Never use a generator, DC/AC converter, AC/AC con-  
verter, or transformer to supply power for the  
DTA-70.1.  
Never perform a “thumb test” (checking whether cur-  
rent 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.  
Do not short across the output terminals or across the  
output terminals and rear panel.  
Never remove the cover of the DTA-70.1.  
Do not install the DTA-70.1 in a location within the  
reach of small children.  
Installation location and space  
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  
DTA-70.1 to allow room for the power cord and other  
cables for connecting system components. A minimum  
of four inches is required behind the DTA-70.1 to allow  
room for the cables and cords without excessively bend-  
ing them.  
Do not place the DTA-70.1 near TV or radio. This may  
cause noise or instable video on radio or TV respectively.  
Power cord  
Do not use a power cord other than the one supplied with  
the DTA-70.1. The power cord supplied is designed for  
use with the DTA-70.1 and should not be used with any  
other device.  
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.  
Lightning storms  
During lightning storm, never touch the power cord, plug  
or cover of the DTA-70.1, and any devices connected to  
the DTA-70.1.  
Power  
WARNING:  
BEFORE PLUGGING IN THE UNIT FOR THE FIRST  
TIME, READ THE FOLLOWING SECTION CARE-  
FULLY.  
AC outlet voltages vary from country to country. Make  
sure that the voltage in your area meets the voltage  
requirements printed on the unit’s rear panel (e.g., AC  
220-240 V, 50/60 Hz or AC 120 V, 60 Hz).  
6
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DTA-70.1_En_100108.book Page 7 Friday, January 8, 2010 2:04 PM  
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 control amplifier.  
Lower the volume of the control amplifier to the  
minimum so that when the amplifier is turned on,  
you do not hear loud unwanted sounds.  
For those of you who want to operate the DTA-70.1 (the  
amplifier) right away, follow the guide below. However,  
this instruction manual contains a great deal of other  
information that you should know for the proper opera-  
tion of the amplifier and for a more pleasurable experi-  
ence with the amplifier. Be sure to read the rest of this  
manual as well after reading this quick guide.  
2. Connect the speakers to the amplifier.  
Connect the speakers to the amplifier using the  
proper speaker cables. Be sure to match the channels  
and the positive (+) and negative (–) polarities  
between the speakers and the amplifier. If the con-  
nections are mistaken, the correct orientation will  
not be obtained.  
The procedures given below assume that the other sys-  
tem components are already connected and configured.  
(For example, that the source components are already  
connected to the control amplifier.)  
3. Select balanced input (XLR) or unbalanced input  
(RCA) with the INPUT SELECT switch.  
The amplifier 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 the  
control amplifier.  
Note:  
Do not change the INPUT SELECT switch setting when  
the amplifier is turned on.  
4. Connect the control amplifier to the amplifier.  
After selecting the correct input type in step 3 above,  
connect the output from the control amplifier to the  
corresponding input terminal on the amplifier.  
Note:  
Do not connect anything to the other input jack.  
5. Connect the supplied power cord to the amplifier  
and to the wall power outlet.  
Be sure to properly plug the power cord all the way  
in.  
6. Press the Power switch.  
The Standby indicator lights red.  
7. Press the On/Standby button.  
The On indicator lights blue.  
When you connect other device to the 12V TRIG-  
GER IN terminal using the supplied cable, the power  
on or off status of the amplifier synchronizes to the  
action of turning on or off the connected device.  
While the Standby indicator lights red, the amplifier  
is in standby state waiting for 12V trigger signal.  
8. Slowly increase the control amplifier volume.  
Note:  
After the amplifier is turned on, it takes approximately  
10 seconds before the output sounds. During this time,  
do not turn up the volume.  
Now all that remains is to control the control amplifier  
and the other connected system components and enjoy  
your music or movies.  
7
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DTA-70.1_En_100108.book Page 8 Friday, January 8, 2010 2:04 PM  
Front & Rear Panels  
Front Panel  
a b c  
d
a Power switch  
c Standby indicator  
This is the main power switch. When set to OFF,  
the amplifier is completely shutdown. It must be set  
to On to set the amplifier to On or Standby.  
The amplifier is in standby state and waits for  
instruction signal from the 12V TRIGGER IN ter-  
minal.  
b On/Standby button  
This button is used to set the amplifier to On or  
Standby.  
d On indicator  
The main power of the amplifier is turned on and  
you can play and enjoy an input source.  
Note:  
Notes:  
If you wish to turn on the amplifier again after it is turned  
off, wait for several seconds.  
• If the Power switch is pressed and both of the On and  
Standby indicators do not light, check that the power  
cord is properly connected. If the indictors still do not  
light, turn off the amplifier, disconnect the power cord  
from wall outlet, and contact the dealer from whom  
you purchased this unit.  
• If the Standby indicator flashes red, the protection cir-  
cuitry of the amplifier has activated. The protection  
circuitry activates if a problem such as a speaker cable  
shorting or excessive temperature occurs. Turn off the  
amplifier, remove the cause of the problem, and then  
turn it back on. If the problem is still not solved, turn  
off the amplifier, disconnect the power cord from wall  
outlet, and contact the dealer from whom you pur-  
chased this unit.  
8
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DTA-70.1_En_100108.book Page 9 Friday, January 8, 2010 2:04 PM  
Front & Rear Panels—Continued  
Rear Panel  
This unit comprises 9 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.  
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 amplifier is turned on (Power  
Turn the volume of the control amplifier down before turning on the amplifier.  
On).  
e f  
g
h
a
b
c
d
Plugging the XLR cable  
a Balanced Input (XLR terminal)  
Connect AV controllers or control amplifiers with  
balanced outputs for high-quality sound.  
Match the pins and insert the terminal until you hear a  
“click.” Make sure that the terminal is locked by lightly  
pulling the connection cable.  
1. GND  
3. COLD  
Unpugging the XLR cable  
Pull out the connection cable while holding down the  
lever.  
2. HOT  
Connector ground terminal: Chassis grounded  
The pin assignments for this terminal are given  
above. This pin assignment conforms to the stan-  
dard adopted by the Audio Engineering Society.  
Refer to the instruction manual supplied with the  
control amplifier and verify that its output terminal  
is compatible with the pin assignments for this ter-  
minal. The output terminal of Integra DTC-80.1 is  
compatible with the pin assignments for the termi-  
nal of the amplifier.  
Push  
Notes:  
• When using this balanced connection for a specific  
channel between the control amplifier and the ampli-  
fier, set the INPUT SELECT switch to the upper side  
(the balanced input side) to select balanced input.  
Next, use commercial XLR balanced cable and con-  
nect the balanced output from the control amplifier to  
the corresponding balanced input on the amplifier.  
• Do not connect anything to the RCA-type audio input  
jack.  
The amplifier uses the European type XLR termi-  
nal. Phase is reversed when an XLR cable is con-  
nected to the control amplifier that uses the USA  
type XLR terminal. In this case, swap pin 2 and pin  
3 to set the polarity to the European type before  
connecting.  
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DTA-70.1_En_100108.book Page 10 Friday, January 8, 2010 2:04 PM  
Front & Rear Panels—Continued  
Notes:  
b INPUT SELECT switch  
• Regardless of the position of this switch, this function  
will not work when the amplifier has been turned on  
by the 12V trigger.  
• Before entering standby mode by the auto power-  
down function, the amplifier notifies you by flashing  
the On indicator for 10 seconds.  
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.  
When setting the switch to the upper side, the bal-  
anced input is selected.  
When setting the switch to the lower side, the RCA  
audio input is selected.  
• Depending on some sources, the auto power-down  
function may activate during playback.  
Notes:  
g 12V TRIGGER IN  
• Do not change the INPUT SELECT switch setting  
when the amplifier 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.  
Connects to the 12V trigger output terminal on the  
other component to control the amplifier. This  
enables the amplifier to turn on or go into standby  
state based on the power on/standby status of the  
connected component.  
Use the supplied or commercially available 1/8-inch  
mono cable to connect to the 12V trigger output ter-  
minal on the other device.  
c Unbalanced Input (single end RCA input)  
Connect AV controllers or control amplifiers with  
single-ended outputs.  
RCA type  
The tip polarity of the connectors are as shown  
below.  
Notes:  
• When using this single-ended connection for a spe-  
cific channel, set the INPUT SELECT switch to the  
lower side (the RCA audio input side), use commer-  
cial RCA audio pin cable and connect the single-  
ended outputs.  
5 to 12 volts, positive  
tip polarity  
h AC INLET  
Plug the supplied power cord into this AC INLET  
and then into the power outlet on the wall.  
• Do not connect anything to the balanced input jack.  
d OUTPUT (Speaker output and binding post)  
These terminal posts are for connecting the front  
L/R, center, surround L/R, surround back L/R, and  
front high/wide L/R speakers.  
Powercord  
(supplied)  
To an AC wall  
outlet  
The FRONT L/R and SURR BACK L/R terminal  
posts can be used with front speakers and surround  
back speakers respectively, or used to bi-amp the  
front speakers. See “Bi-amping the Front Speakers”  
on page 15.  
• Do not plug the amplifier into the AC outlet other than  
an AC wall socket.  
• Do not use a power cord other than the one supplied  
with the amplifier. The power cord supplied is  
designed for use with the amplifier and should not be  
used with any other device.  
• Never have the power cord disconnected from the  
amplifier 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 dis-  
connect by unplugging from the wall outlet first.  
• Before you plug in the amplifier, confirm that all con-  
nections have been made properly.  
• Turning on the power may cause a momentary power  
surge, which might interfere with other electrical  
equipment on the same circuit, such as computers. If  
this happens, use a wall outlet on a different circuit.  
e SPEAKER IMPEDANCE switch  
Use this switch to select the speaker impedance.  
4: Select if the impedance of any speaker is  
4 ohms or more but less than 6.  
6: Select if the impedances of all speakers are  
between 6 and 16 ohms.  
f AUTO POWER DOWN switch  
You can use the auto power-down function. If the  
amplifier receives no signal for 3 hours, it will auto-  
matically enter standby mode. Once the auto power-  
down function has been activated, the amplifier will  
not automatically turn on even if it receives the sig-  
nal. To turn on the amplifier, press the On/Standby  
button manually. You can also disable the function  
by setting this switch to OFF side.  
Default setting: ON (Australian models), OFF  
(North American models)  
10  
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DTA-70.1_En_100108.book Page 11 Friday, January 8, 2010 2:04 PM  
Connecting the Amplifier  
Speaker Connection Precautions  
Connecting Your Speakers  
Read the following before connecting your speakers:  
You can connect speakers with an impedance of  
between 4 and 16 ohms. If the impedance of any of the  
connected speakers is 4 ohms or more, but less than 6  
ohms, be sure to set the minimum speaker impedance  
to “4ohms” (see page 10). If you use speakers with a  
lower impedance, and use the amplifier at high vol-  
ume levels for a long period of time, the built-in pro-  
tection circuit may be activated.  
Before connecting the speakers, place them correctly by  
consulting the instruction manuals that came with them.  
For surround playback, the configuration and placement  
of your speakers are very important.  
Please note that connecting speakers with a low power  
input rating does not produce large sound volumes. For  
those speakers, large sound volumes causing excessive  
input level may damage the speakers.  
Note:  
• Disconnect the power cord from the wall outlet before  
making any connections.  
Once you’ve completed speaker connections, you must  
turn on the AV controller or control amplifier and con-  
figure the output channels.  
• Read the instructions supplied with your speakers.  
• Pay close attention to speaker wiring polarity. In other  
words, connect positive (+) terminals only to positive  
(+) terminals, and negative (–) terminals only to nega-  
tive (–) terminals. If you get them the wrong way  
around, the sound will be out of phase and will sound  
unnatural.  
• Unnecessarily long, or very thin speaker cables may  
affect the sound quality and should be avoided.  
• If you use 4 or 5 speakers, connect each of the two  
surround speakers to the SURR L/R terminals. Do not  
connect them to the SURR BACK L/R or FRONT  
HIGH/WIDE L/R terminals.  
Attaching the Speaker Labels  
The amplifier’s positive (+) speaker terminals are all red  
(the negative (–) speaker terminals are all black).  
Speaker  
Color  
White  
Red  
Front left  
Front right  
Center  
Green  
Blue  
Surround left  
Surround right  
Surround back left  
Surround back right  
Front high/wide left  
Front high/wide right  
Gray  
Brown  
Tan  
• Be careful not to short the positive and negative wires.  
Doing so may damage the amplifier.  
• Make sure the metal core of the wire does not have  
contact with the amplifier’s rear panel. Doing so may  
damage the amplifier.  
White  
Red  
The supplied speaker cable labels are also color-coded  
and you should attach them to the positive (+) side of  
each speaker cable in accordance with the above table.  
Then all you need to do is to match the color of each  
label to the corresponding speaker terminal.  
(North American models)  
• If you are using banana plugs, tighten the speaker ter-  
minal before inserting the banana plug.  
• Do not insert the speaker code directly into the center  
hole of the speaker terminal.  
• Don’t connect more than one cable to each speaker  
terminal. Doing so may damage the amplifier.  
• Don’t connect one speaker to several terminals.  
11  
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DTA-70.1_En_100108.book Page 12 Friday, January 8, 2010 2:04 PM  
Connecting the Amplifier—Continued  
Connecting the Speaker Cables  
1/2" to 5/8"  
(12 to 15 mm)  
Strip about 1/2" to 5/8"  
(12 to 15 mm) of insu-  
Fully insert the bare wires.  
Screw the terminal tight.  
1
3
4
lation from the ends of  
the speaker cables,  
and twist the bare  
wires tightly, as  
shown.  
Unscrew the terminal.  
2
The following illustration shows which speaker should be connected to each pair of terminals. If you’re using only one  
surround back speaker, connect it to the SURR BACK L terminal.  
Note:  
If you use front high or front wide speakers, you must turn on the AV controller and select the speakers to be used.  
For more details, see the instruction manual of the connected component.  
Select 4or 6Ω.  
Surround  
right  
speaker  
Front right  
speaker  
Center  
speaker  
Front left  
speaker  
Surround  
left  
speaker  
Fronthigh/wide  
right speaker  
Surround  
back right  
speaker  
Surround  
back left  
speaker  
Front high/wide  
left speaker  
12  
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DTA-70.1_En_100108.book Page 13 Friday, January 8, 2010 2:04 PM  
Connecting the Amplifier—Continued  
Connecting to an AV Controller with XLR output  
Since many users will purchase the amplifier together with the Integra AV controller DHC-80.1, here is an explanation  
of how to connect the amplifier to the DHC-80.1. For more details, see the instruction manual of the connected compo-  
nent.  
Notes:  
• When using the balanced inputs, do not connect anything to the RCA inputs.  
• Make sure that the balanced cable is not split. The split balanced cable may be the cause of noise.  
• If a device with the USA type terminal is connected, the phase will be reversed. In this case, swap the polarity of the  
XLR connector in order to set the polarity to the European type before connecting.  
The amplifier  
XLR type  
Balanced cable  
From the AV controller  
AV controller  
From the amplifier  
13  
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DTA-70.1_En_100108.book Page 14 Friday, January 8, 2010 2:04 PM  
Connecting the Amplifier—Continued  
Connecting to an AV Controller with RCA output  
Since many users will purchase the amplifier together with the Integra AV controller DHC-80.1, here is an explanation  
of how to connect the amplifier to the DHC-80.1. For more details, see the instruction manual of the connected compo-  
nent.  
Notes:  
• When using the RCA inputs, do not connect anything to the balanced inputs.  
• Make sure that the pin cable is not split. The split pin cable may be the cause of noise.  
• Push plugs in all the way to make good connections (loose connections can cause noise or malfunctions).  
• To prevent interference, keep audio and video cables away from power cords and speaker cables.  
The amplifier  
Right!  
Wrong!  
AV controller  
14  
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DTA-70.1_En_100108.book Page 15 Friday, January 8, 2010 2:04 PM  
Connecting the Amplifier—Continued  
Bi-amping the Front Speakers  
The FRONT L/R and SURR BACK L/R outputs can be used with front speakers and surround back speakers respec-  
tively, or bi-amped to provide separate tweeter and woofer feeds for a pair of front speakers that support bi-amping,  
providing improved bass and treble performance.  
Notes:  
• Please make sure that your AV controller supports bi-amping.  
• When bi-amping is used, the amplifier is able to feed up to 7-channel speakers in the main room.  
• When bi-amping is used, surround back speakers cannot be used.  
• For bi-amping, the FRONT L/R outputs feed the front speakers’ woofer terminals. And the SURR BACK L/R outputs  
feed the front speakers’ tweeter terminals.  
• Once you’ve completed the bi-amping connections shown below, you must turn on the AV controller and configure  
it to enable bi-amping. For more details, see the instruction manual of the connected component.  
You can also use unbalanced (RCA) connections for bi-amping.  
Important:  
• When making the bi-amping connections, be sure to remove the jumper bars that link the speakers’ tweeter  
(high) and woofer (low) terminals.  
• Bi-amping can only be used with speakers that support bi-amping. Refer to your speaker manual.  
AV controller  
The amplifier  
Surround right  
speaker  
Center speaker  
Surround left  
speaker  
Front high/wide  
right speaker  
Front high/wide  
left speaker  
Tweeter (high)  
Woofer (low)  
Front right speaker  
Front left speaker  
15  
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DTA-70.1_En_100108.book Page 16 Friday, January 8, 2010 2:04 PM  
Connecting the Amplifier—Continued  
Multiroom Connections  
You can use three speaker systems with this amplifier—a surround-sound speaker system in your main listening  
room, Zone 2: a stereo speaker system in a second room, Zone 3: a stereo speaker system in a third room. The following  
examples are based on using the amplifier with the AV controller, DHC-80.1. For more details, see the instruction  
manual of the connected component.  
Notes:  
• Please make sure that your AV controller has the multi-zone capability.  
• Once you’ve completed multi-zone connections shown below, you must turn on the AV controller and configure it to  
enable the multi-zone capability.  
• If your AV controller has balanced outputs for multiroom versatility, you can also use the balanced inputs on the  
amplifier.  
Connection 1  
Main room: You can enjoy up to 5-channel surround-sound playback.  
Zone 2: You can enjoy 2-channel stereo playback and video playback.  
Zone 3: You can enjoy 2-channel stereo playback.  
Zone 2  
Zone 3  
Make either  
connection.  
AV controller  
Front right  
speaker  
Front left  
speaker  
Front right  
speaker  
Front left  
speaker  
The amplifier  
See page 13 or 14 for the connection.  
Main room  
Surround right  
speaker  
Front right  
speaker  
Center speaker Front left  
speaker  
Surround left  
speaker  
16  
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DTA-70.1_En_100108.book Page 17 Friday, January 8, 2010 2:04 PM  
Connecting the Amplifier—Continued  
Connection 2  
Main room: You can enjoy up to 7-channel surround-sound playback.  
Zone 2: You can enjoy 2-channel stereo playback and video playback.  
Make either connection.  
Zone 2  
AV controller  
Front right  
speaker  
Front left  
speaker  
The amplifier  
See page 13 or 14 for the connection.  
Main room  
Surround back Surround right  
right speaker speaker  
Front right  
speaker  
Center speaker Front left  
speaker  
Surround left Surround back  
speaker left speaker  
17  
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DTA-70.1_En_100108.book Page 18 Friday, January 8, 2010 2:04 PM  
Troubleshooting  
If the DTA-70.1 fails to function normally, first check the  
following points before contacting the dealer from  
whom you purchased this unit. If the problem is not  
solved after going through the following list, unplug the  
power cord and contact the dealer from whom you pur-  
chased this unit.  
• Connection to the input terminals is not complete or  
not appropriate.  
For each channel’s input terminals, connect cables  
or cords to either balanced input terminal or audio  
input terminal only and switch the INPUT SELECT  
switch accordingly.  
Avoid connecting the cables or cords to the input ter-  
minals that will not be used.  
No power.  
• Power cord is not correctly plugged into AC outlet/  
Inlet.  
Plug the power cord into the AC outlet/Inlet prop-  
erly.  
• Power switch is not set to On position.  
Set the Power switch to On.  
Power turns on but no sound.  
• Incomplete connections.  
Check speaker cable connections.  
Insert all plugs firmly into jacks.  
• No input signal from control amplifier.  
Check for input signal from control amplifier.  
• Incorrect INPUT SELECT switch setting.  
Set INPUT SELECT switch to correct setting.  
The Standby indicator flashes red.  
• The protection circuitry has been activated.  
Remove the power cord from the wall outlet  
immediately. Set the Power switch to Off, disconnect  
all speaker cables and input sources, and then leave  
the amplifier with its power cord disconnected for 1  
hour. After that, reconnect the power cord, set the  
Power switch to On. If the amplifier stays on, dis-  
connect the power cord, and reconnect your speakers  
and input sources. If the amplifier turns off, discon-  
nect the power cord, and contact the dealer from  
whom you purchased this unit.  
The 12V trigger of the DTA-70.1 does not react  
to that of the DHC-80.1.  
• Connection between the 12V trigger terminals is  
incomplete.  
Connect the cables to the terminals firmly.  
Humming or other noise is heard.  
• Input cable connection is incomplete.  
Insert the input cable to pin jack or connector  
completely.  
• Noise from power cord or power transformer affects  
the input cable.  
Keep power cord or power transformer away from  
the input cable.  
• Power cord or speaker cables are bundled together  
with pin cords.  
This may cause humming or noise. Do not bundle  
power cord or speaker cables with pin cables  
together.  
18  
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DTA-70.1_En_100108.book Page 19 Friday, January 8, 2010 2:04 PM  
Specifications  
Amplifier section  
General  
Rated Output Power  
All channels:  
Power Supply  
North American:  
AC 120 V, 60 Hz  
Australian:  
AC 220 - 240 V, 50/60 Hz  
North American: 11.7 A  
Australian: 1050 W  
North American:  
150 watts minimum continuous  
power per channel, 8 ohm loads,  
2 channels driven from 20 Hz to  
20 kHz, with a maximum total  
harmonic distortion of 0.05% (FTC)  
175 watts minimum continuous  
power per channel, 8 ohm loads,  
2 channels driven from 20 Hz to  
20 kHz with a maximum total  
harmonic distortion of 0.7% (FTC)  
185 watts minimum continuous  
power per channel, 6 ohm loads,  
2 channels driven at 1 kHz, with a  
maximum total harmonic distortion  
of 0.1% (FTC)  
Power Consumption  
Dimensions (W × H × D)  
435 × 198.5 × 445 mm  
17-1/8" × 7-13/16" × 17-1/2"  
Weight  
23 kg (50.7 lbs.)  
Audio Inputs  
Balance Inputs  
Unbalance Inputs  
9
9
Australian:  
Speaker Outputs  
9 ch × 220 W at 6 ohms, 1 kHz, 1 ch  
driven (IEC)  
FL, FR, C, SL, SR, SBL, SBR, LH, RH  
Maximum Effective Output Power  
Australian:  
Control Terminal  
9 ch × 280 W at 6 ohms, 1 kHz, 1 ch  
12 V Trigger In  
1
driven (JEITA)  
Dynamic Power  
400 W (3 , Front)  
300 W (4 , Front)  
180 W (8 , Front)  
Specifications and features are subject to change  
without notice.  
THD (Total Harmonic Distortion)  
0.05 % (Power Rated)  
60 (Front, 1 kHz, 8 )  
Input Sensitivity and Impedance  
1 V, 47 k(Unbalanced)  
Damping Factor  
2 V, 22 k(Balanced)  
5 Hz - 100 kHz/+1 dB - 3 dB  
110 dB (Unbalanced, IHF-A)  
4 - 16 Ω  
Frequency Response  
Signal to Noise Ratio  
Speaker Impedance  
19  
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DTA-70.1_En_100108.book Page 20 Friday, January 8, 2010 2:04 PM  
Integra Division of  
ONKYO U.S.A. CORPORATION  
18 park Way, Upper Saddle River, N.J. 07458, U.S.A.  
Tel: 800-225-1946, 201-818-9200 Fax: 201-785-2650 http://www.integrahometheater.com  
E
n
Integra Division of  
ONKYO CORPORATION  
Sales & Product Planning Div.: 2-1, Nisshin-cho, Neyagawa-shi, OSAKA 572-8540, JAPAN  
Tel: 072-831-8023 Fax: 072-831-8163  
Y1001-1  
SN 29400191  
(C) Copyright 2010 ONKYO CORPORATION Japan. All rights reserved.  
* 2 9 4 0 0 1 9 1 *  
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