Contents
Seven Channel Amplifier
DTA-9.4
Instruction Manual
Before using
Operations
Connections
Appendix
Thank you for purchasing the Integra 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 listening enjoyment from
your new Seven Channel Amplifier.Please retain this
manual for future reference.
En
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Precautions
1. Recording Copyright
For Canadian models
Recording of copyrighted material for other than personal use is
illegal without permission of the copyright holder.
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.
2. AC Fuse
The fuse is located inside the chassis and is not user-serviceable. If
power does not come on, contact your Integra/Onkyo authorized
service station.
Modèle pour les Canadien
Sur les modèles dont la fiche est polarisée:
3. Care
ATTENTION: POUR ÉVITER LES CHOCS ÉLECTRIQUES,
INTRODUIRE LA LAME LA PLUS LARGE DE LA FICHE
DANS LA BORNE CORRESPONDANTE DE LA PRISE ET
POUSSER JUSQU’AU FOND.
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. Following this, dry immediately with a clean
cloth. Do not use rough material, thinners, alcohol or other chemi-
cal solvents or cloths since these could damage the finish or remove
the panel lettering.
4. Power
WARNING
BEFORE PLUGGING IN THE UNIT FOR THE FIRST TIME,
READ THE FOLLOWING SECTION CAREFULLY.
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
230 V, 50 Hz or AC 120 V, 60 Hz) written on the rear panel.
FCC INFORMATION FOR USER
CAUTION:
The user changes or modifications not expressly approved by the
party responsible for compliance could void the user’s authority to
operate the equipment.
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 interference in a residential installation. This equipment
generates, uses and can radiate radio frequency energy and, if not
installed and used in accordance with the instructions, may cause
harmful interference to radio communications. However, there is
no guarantee that interference will not occur in a particular installa-
tion. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equip-
ment off and on, the user is encouraged to try to correct the interfer-
ence by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from
that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for
help.
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Features
Contents
Before using
I High output switching power supply dedicated to
audio processing
Important Safeguards......................................... 2
Precautions ......................................................... 3
Features ............................................................... 4
Contents .............................................................. 4
Supplied accessories ......................................... 5
Precautions ......................................................... 6
I Ultra low impedance design with extensive use of
copper bus bar, large coil, and ultra heavy gauge
wire
I 7-channel integral PWM amplifier with completely
discrete structure
I Balanced XLR Inputs for Better Dynamic Range
and Stability on long Cable Runs
I Gold plated high quality grinded speaker terminals
Operations
and RCA/XLR input terminals
Quick operation guide........................................ 7
Front panel facilities........................................... 8
I High quality custom speaker terminals
compatible with banana plugs
I 12V trigger input terminal
I Detachable power cord
Connections
I 120 Watts per channel min. RMS. Into 8 ohms 2
channel driven, from 20 to 20,000 Hz with no
more than 2.5 % total harmonic distortion
Rear panel facilities and connections .............. 9
Connecting speakers ....................................... 11
Connecting to the Integra AV Controller
DTC-9.4 ......................................................... 12
Appendix
Troubleshooting guide ..................................... 13
Specifications ................................................... 14
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Supplied accessories
Check that the following accessories are supplied with the DTA-9.4.
Power cord × 1
Stereo mini-plug cable × 1
(for connecting to the 12V
TRIGGER IN terminal on the
CONTROL LINK-compatible
Integra/Onkyo products)
5
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Precautions
Before using the DTA-9.4 power amplifier, be sure to read the page
above entitled Important Safeguards and this page of precautions.
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. Following this, dry immediately with a clean cloth. Do
not use rough material, thinners, alcohol or other Chemical solvents
or cloths since these could damage the finish or remove the panel
lettering.
Ventilation
While using the DTA-9.4, the internal temperature will fairly rise.
Excessive temperature rise may affect the amplifier performance.
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.
Whenever performing maintenance on the DTA-9.4, 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.
When you clean the input/output terminals on the rear panel, do not
use contact restorer. Doing so may cause resin deterioration.
Caution
• Do not place the DTA-9.4 inside cabinets or closets where there
is poor passage of air and ventilation.
• Do not place the DTA-9.4 near external heat sources such as
heaters or hot air ducts.
Other
Below is a list of actions that you should never perform.
• Do not place other components or object on top of or under the
DTA-9.4.
• Do not use the DTA-9.4 as a broadcast system or musical
• The cover of the DTA-9.4 contains ventilation holes to allow the
instrument amplifier.
passage of air. Do not cover or block these holes in any way.
• Never use a generator, DC/AC converter, AC/AC converter, or
transformer to supply power for the DTA-9.4.
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.
• 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.
As a general rule, if during idling the cover is too hot to touch, then
ventilation needs to be improved.
• Do not short across the output terminals or across the output
terminals and rear panel.
• Never remove the cover of the DTA-9.4.
Installation location and space
• Do not install the DTA-9.4 in a location within the reach of
small children.
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-9.4 to
allow room for the power cord and other cables for connecting
system components. A minimum of four inches is required behind
the DTA-9.4 to allow room for the cables and cords without
excessively bending them.
Lightning storms
During lightning storm, never touch the power cord, plug or cover of
the DTA-9.4, and any devices connected to the DTA-9.4.
Do not place the DTA-9.4 near TV or radio. This may cause noise or
instable video on radio or TV respectively.
Power
Power cord
WARNING:
BEFORE PLUGGING IN THE UNIT FOR THE FIRST TIME,
READ THE FOLLOWING SECTION CAREFULLY.
Do not use a power cord other than the one supplied with the DTA-
9.4. The power cord supplied is designed for use with the DTA-9.4
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.
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).
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-9.4.
6
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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 control amplifier.
Lower the volume of the control amplifier to the minimum so
that when the DTA-9.4 is turned on, you do not hear loud
unwanted sounds.
For those of you who want to operate the DTA-9.4 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 DTA-9.4 and for a more pleasurable experience
with the DTA-9.4. Be sure to read the rest of this manual as well after
reading this quick guide.
2. Connect the speakers to the DTA-9.4.
Connect the speakers to the DTA-9.4 using the proper speaker
cables. Be sure to match the channels and the positive (+) and
negative (–) polarities between the speakers and the DTA-9.4. If
the connections are mistaken, the correct orientation will not be
obtained.
The procedures given below assume that the other system
components are already connected. (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 DTA-9.4 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
control amplifier.
Note:
Do not change the INPUT SELECT switch setting when the DTA-
9.4 is turned on.
4. Connect the control amplifier to the DTA-9.4.
After selecting the correct input type in step 3 above, connect the
output from the control amplifier to the corresponding input
terminal on the DTA-9.4.
Note:
Do not connect anything to the other input jack.
5. Connect the supplied power cord to the DTA-9.4 and
to the wall power outlet.
Be sure to properly plug the power cord all the way in.
6. Press the Power switch.
When pressing this switch, the Standby indicator flashes red, and
then the On indicator lights blue. When you connect other device
to the 12V TRIGGER IN terminal using the supplied cable, the
power on or off status of the DTA-9.4 synchronizes to the action
of turning on or off the connected device. While the Standby
indicator lights red, the DTA-9.4 is in standby state waiting for
12V trigger signal.
7. Slowly increase the control amplifier volume.
Note:
After the DTA-9.4 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.
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Front panel facilities
Power
On /
Off
Standby indicator and
On indicator
Turns on and off the main power supply for the DTA-9.4.
When the Power switch is pressed, either indicator will light like
following.
Power Off: The DTA-9.4 turns off.
Power On: When no device is connected to the 12V
TRIGGER IN terminal, the DTA-9.4 turns on.
The On indicator lighting Blue: The main power of the DTA-
9.4 is turned on and you can play and enjoy an input source.
When a device is connected to the 12V TRIGGER IN terminal,
the DTA-9.4 turns on with the 12V trigger signal coming in or
goes into standby state with no 12V trigger signal.
(See page 10 for information on the 12V TRIGGER IN
terminal.)
The Standby indicator lighting Red: The DTA-9.4 is in
standby state and waits for instruction signal from the 12V
TRIGGER IN terminal.
Note:
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 DTA-9.4,
disconnect the Power cord from wall outlet, and contact an Integra/
Onkyo service station or representative.
Note:
If you wish to turn on the DTA-9.4 again after it is turned off, wait
for 30 seconds or more.
If the On indicator lights blue and the Standby indicator flashes red,
the protection circuitry of the DTA-9.4 has activated. The protection
circuitry activates if a problem such as a speaker cable shorting or
the temperature of the DTA-9.4 rising excessively occurs. Turn off
the DTA-9.4, remove the cause of the problem, and then turn the
DTA-9.4 back on. If the problem is still not solved, turn off the
DTA-9.4, disconnect the power cord from wall outlet, and contact an
Integra/Onkyo service station or representative.
8
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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 DTA-9.4 is turned on (Power
• Turn the volume of the control amplifier down before turning on the DTA-9.4.
on).
SURROUND BACK
RIGHT
SURROUND
RIGHT
SURROUND
LEFT
SURROUND BACK
LEFT
RIGHT
CENTER
LEFT
SEVEN CHANNEL AMPLIFIER
-
MODEL NO. DTA 9.4
INPUT
SELECT
INPUT
SELECT
INPUT
SELECT
INPUT
SELECT
INPUT
SELECT
INPUT
SELECT
INPUT
SELECT
12V TRIGGER IN
CONTROL LINK IN
AC INLET
OUTPUT
OUTPUT
OUTPUT
OUTPUT
OUTPUT
OUTPUT
OUTPUT
2. Disconnecting the input terminal
Precaution for connection
Pull out the connection cable while holding down the lever.
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. Leave any unused channels unconnected, if the DTA-
9.4 is used for 2- or 5-channel connection.
Push
Note:
• When using this balanced connection for a specific channel
between the control amplifier and DTA-9.4, set the INPUT
SELECT switch to the side (the balanced input side) to select
balanced input. Next, use commercial XLR balanced cable and
connect the balanced output from the control amplifier to the
corresponding balanced input on the DTA-9.4.
Balanced Input (XLR terminal)
Connect controllers or control amplifiers with balanced outputs for
high-quality sound.
1. GND
• Do not connect anything to the RCA-type audio input jack.
3. inverting (–)
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.
2. non-inverting (+)
Connector ground terminal: Chassis grounded
When pushing the switch to the side, the balanced input is selected.
When pushing the switch to the side, the RCA audio input is selected.
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 control amplifier and verify that its output terminal is compatible
with the pin assignments for this terminal. The output terminal of
Integra DTC-9.4 is compatible with the pin assignments for the
terminal of DTA-9.4.
Note:
• Do not change the INPUT SELECT switch setting when the
DTA-9.4 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.
Input terminal
Unbalanced Input (single end RCA input)
1. Connecting the input terminal
Connect controllers or control amplifiers with single-ended outputs.
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.
RCA type
Note:
• When using this single-ended connection for a specific channel
between the control amplifier and DTA-9.4, set the INPUT
SELECT switch to the side (the RCA audio input side) to select
single-ended input. Next, use commercial RCA audio pin cable
and connect the single-ended output from the control amplifier to
the corresponding single-ended input on the DTA-9.4.
• Do not connect anything to the balanced input jack.
9
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Rear panel facilities and connections
+ OUTPUT – (Speaker output and binding post)
AC INLET
The DTA-9.4 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 DTA-9.4, we recommend the use of high-quality
speaker cables.
Plug the supplied Power cord into this AC INLET and then into the
Power outlet on the wall.
For each channel, connect the negative (white) output post to the
negative input terminal of the speaker and the positive (red) output
post to the positive input terminal of the speaker.
To an AC wall outlet
12V TRIGGER IN (CONTROL LINK IN)
Power cord
(supplied)
Connects to the 12V trigger output terminal on the other device to
control the DTA-9.4.
Connecting to the Integra DTC-9.4 AV controller:
Use the attached stereo mini-plug cable to connect to the 12V
TRIGGER OUT terminal on the DTC-9.4.
• Do not plug the DTA-9.4 into the AC outlet other than an AC
wall socket. Avoid using the AC OUTLET of the control
amplifier as power supply outlet for the DTA-9.4.
Connecting to the 12V TRIGGER OUT B (CONTROL
LINK OUT) terminal:
• Do not use a Power cord other than the one supplied with the
DTA-9.4. The Power cord supplied is designed for use with the
DTA-9.4 and should not be used with any other device.
This enables the DTA-9.4 to turn on or go into standby state
based on the power on/standby status of the DTC-9.4. The
brightness of the On or Standby indicator on the DTA-9.4 also
switches automatically in 4 levels according to the dimmer
setting (brightness adjustment of the display) of the DTC-9.4.
• Never have the Power cord disconnected from the DTA-9.4
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.
Connecting to the 12V TRIGGER OUT A terminal:
This enables the DTA-9.4 to turn on or go into standby state
based on the power on/standby status of the DTC-9.4.
• Before you plug in the DTA-9.4, confirm that all connections
have been made properly.
Note:
• 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.
Be sure to use the attached stereo mini-plug cable for connecting to
the DTC-9.4. Using any other cables does not allow control of the
DTA-9.4 with the Dimmer function to work.
Connecting to any other devices than the DTC-9.4:
Use the commercial 1/8-inch mono cable to connect to the 12V
trigger output terminal on the other device. This enables the DTA-
9.4 to turn on or go into standby state based on the power on/standby
status of other devices.
The tip polarity of the connectors are as shown below.
5-12 volts,
positive tip
polarity
10
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Connecting speakers
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.
To prevent damage to circuitry, never short-circuit the positive (+)
and negative (–) speaker wire. Never short across the speaker cable
wire and the rear panel.
Connecting speakers
Caution
• Do not connect any devices other than speakers to these
terminals. Do not short across the output terminals or across the
output terminals and rear panel.
Connect the red (+) output terminal on the DTA-9.4 to the (+)
terminal on the speaker, and the white (–) output terminal on the
DTA-9.4 to the (–) terminal on the speaker. Use the marking or line
on the speaker cord to connect appropriate terminals. Be sure to
match the speaker polarity for in-phase connection by connecting (+)
terminal to (+) terminal and (–) terminal to (–) terminal between the
DTA-9.4 and speakers. Connecting (+) terminal to (–) terminal
between the DTA-9.4 and speakers leads to reverse phase
connection, causing unclear sound localization (the unstable
positioning of the instruments or singer) or strange sound.
• 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.
• Do not connect more than one speaker cable to one output
terminal. Doing may damage the DTA-9.4.
• Do not connect one speaker to multiple speaker terminals. Doing
may damage the DTA-9.4.
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 DTA-9.4.
• Note that negative (–) terminals are not ground (GND) potential.
• When you use banana plugs, do not insert the plugs before
tightening the output terminal screws. The loosen screws may
cause sound distortion or no audio output.
Make the connections following the procedure given below.
• Do not connect one speaker to more than one set of speaker
terminals to avoid parallel speaker connection. Also do not
connect more than one speaker to one set of speaker terminals.
Doing so may cause damage.
• When stripping and twisting the wires, be sure not to allow the
insulation and wire materials to enter the ventilation holes of the
DTA-9.4.
1
2
15mm
NO!
Strip away 5/8 inch
(15 mm) of wire
insulation.
Twist wire ends
very tight.
+
–
+
–
+
–
3
4
5
• Do not perform “biamp/triamp connection,” which means
connecting separate amplifiers to individual speakers of a
speaker system. Doing so may cause damage.
+
–
+
–
Unscrew
Insert wire
Screw
SURROUND BACK
RIGHT
SURROUND
RIGHT
SURROUND
LEFT
SURROUND BACK
LEFT
RIGHT
CENTER
LEFT
SEVEN CHANNEL AMPLIFIER
-
MODEL NO. DTA 9.4
INPUT
SELECT
INPUT
SELECT
INPUT
SELECT
INPUT
SELECT
INPUT
SELECT
INPUT
SELECT
INPUT
SELECT
12V TRIGGER IN
CONTROL LINK IN
AC INLET
OUTPUT
OUTPUT
OUTPUT
OUTPUT
OUTPUT
OUTPUT
OUTPUT
Surround
Back Right Right
Speaker Speaker Speaker
Surround Front
Center
Speaker
Front
Left
Speaker Speaker
Surround Surround
Right
Left
Back Left
Speaker
11
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Connecting to the Integra AV Controller DTC-9.4
Since many users will purchase the DTA-9.4 together with the DTC-9.4, here is an explanation of how to connect the DTA-9.4 to the DTC-9.4.
Balanced input/output connection
Note:
PRE OUT
• When using the balanced
SUBWOOFER
CENTER
RIGHT
LEFT
inputs, do not connect
anything to the RCA inputs.
DTC-9.4
• Make sure that the
balanced cable is not split.
The split balanced cable
may be the cause of noise.
SURR BACK/ZONE
RIGHT
2
SURR BACK/ZONE
LEFT
2
SURROUND
RIGHT
SURROUND
LEFT
XLR type Balanced cable
At the DTC-9.4
DTA-9.4
SURROUND BACK
RIGHT
SURROUND
RIGHT
SURROUND
LEFT
SURROUND BACK
LEFT
RIGHT
CENTER
LEFT
SEVEN CHANNEL AMPLIFIER
-
MODEL NO. DTA 9.4
INPUT
SELECT
INPUT
SELECT
INPUT
SELECT
INPUT
SELECT
INPUT
SELECT
INPUT
SELECT
INPUT
SELECT
12V TRIGGER IN
At the DTA-9.4
CONTROL LINK IN
AC INLET
OUTPUT
OUTPUT
OUTPUT
OUTPUT
OUTPUT
OUTPUT
OUTPUT
Connect to the DTC-9.4
12V TRIGGER OUT B (CONTROL LINK
OUT) terminal
(using supplied stereo mini-plug cable)
Push the INPUT SELECT
switch upward
DTC-9.4
Unbalanced input/output connection RCA type cable
Improper connection
Note:
• 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.
Inserted completely
PRE OUT
R
L
FRONT
SUB
DTC-9.4
CENTER
SURR
SURR
R
L
BACK/
ZONE 2
DTA-9.4
SURROUND BACK
RIGHT
SURROUND
RIGHT
SURROUND
LEFT
SURROUND BACK
LEFT
RIGHT
CENTER
LEFT
SEVEN CHANNEL AMPLIFIER
-
MODEL NO. DTA 9.4
INPUT
SELECT
INPUT
SELECT
INPUT
SELECT
INPUT
SELECT
INPUT
SELECT
INPUT
SELECT
INPUT
SELECT
Push the INPUT SELECT switch
downward
12V TRIGGER IN
CONTROL LINK IN
AC INLET
OUTPUT
OUTPUT
OUTPUT
OUTPUT
OUTPUT
OUTPUT
OUTPUT
Connect to the DTC-9.4
12V TRIGGER OUT B (CONTROL LINK
OUT) terminal
(using supplied stereo mini-plug cable)
DTC-9.4
12
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Troubleshooting guide
If the DTA-9.4 fails to function normally, first check the following
points before contacting your Integra/Onkyo 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.
The dimmer function of the DTA-9.4 does not react to the
dimmer function of the DTC-9.4. (The brightness of the
On/Standby indicator cannot be changed.)
• The cable for the CONTROL LINK connection is connected to
the 12V TRIGGER OUT A terminal on the DTC-9.4.
No power.
© When the cable is connected to the 12V TRIGGER OUT A
terminal, the function link between the DTC-9.4 and DTA-9.4
does not work. Use the 12V TRIGGER OUT B (CONTROL
LINK OUT) terminal for the CONTROL LINK connection.
• Power cord is not correctly plugged into AC outlet/Inlet.
© Plug the power cord into the AC outlet/Inlet properly.
• Power switch is not set to ON position.
© Set the power switch to ON.
• The stereo mini-plug cable other than the supplied one is used
for the connection between the DTC-9.4 and DTA-9.4.
© Use the supplied stereo mini-plug cable. Any other cables
does not allow the function link between the DTC-9.4 and DTA-
9.4 to work.
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 On indicator lights blue and the Standby indicator
flashes red simultaneously.
• Protective circuitry activated.
© A problem such as a speaker cable shorting or the
temperature of the DTA-9.4 rising excessively may have
occurred. Turn power off immediately, locate problem, and
correct it.
The Standby indicator lights red and the On indicator
turns off.
• The DTA-9.4 waits for the 12V trigger signal.
© Turn on the control amplifier.
• 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.
• 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 terminals that
will not be used.
13
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Specifications
Amplifier section
General
Continuous average power output
Power Supply
Power Consumption
AC 120 V, 60 Hz
5.3 A
(FTC Power, Rated Power) (Measured with AES-17 LPF)
Front L/R:
120 Watts per channel min. RMS. Into
Power Consumption
in standby mode
8 ohms 2 channel driven, from 20 to
20,000 Hz with no more than 1 % total
harmonic distortion.
3.8 W
Input terminals
Analog Audio:
Unbalanced (RCA type) × 7
Balanced (XLR type) × 7
240 Watts per channel min. RMS. Into
4 ohms 2 channel driven, 1,000 Hz
with no more than 1.5 % total
harmonic distortion.
Control:
12V TRIGGER (CONTROL LINK) × 1
AC INLET (IEC type) × 1
Power supply:
Output terminals
Analog Audio:
Center:
120 Watts min. RMS. Into 8 ohms 1
channel driven, from 20 to 20,000 Hz
with no more than 1 % total harmonic
distortion.
Speakers × 7
Dimensions (W × H × D)
17-1/8" × 6-7/8" × 17-13/16"
39.0 lbs.
Weight
240 Watts min. RMS. Into 4 ohms 1
channel driven, 1,000 Hz with no more
than 1.5 % total harmonic distortion.
Specifications and features are subject to change without notice.
Surround L/R:
120 Watts per channel min. RMS. Into
8 ohms 2 channel driven, from 20 to
20,000 Hz with no more than 1 % total
harmonic distortion.
240 Watts per channel min. RMS. Into
4 ohms 2 channel driven, 1,000 Hz
with no more than 1.5 % total
harmonic distortion.
Surround Back:
120 Watts per channel min. RMS. Into
8 ohms 2 channel driven, from 20 to
20,000 Hz with no more than 1 % total
harmonic distortion.
240 Watts per channel min. RMS. Into
4 ohms 2 channel driven, 1,000 Hz
with no more than 1.5 % total
harmonic distortion.
Dynamic Power Output
2 × 350 Watts at 2 ohms
2 × 267 Watts at 4 ohms
2 × 162 Watts at 8 ohms
Total Harmonic Distortion
(Measured with AES-17 LPF)
1 % at rated power (1 kHz)
0.01 % at 1 watt output (1 kHz)
Damping Factor
25 at 8 ohms 1 kHz
Input Sensitivity and Impedance 1 V, 5 k ohms (Unbalanced)
2 V, 10 k ohms (Balanced)
5 - 12V dc (12V Trigger)
Frequency Response
Signal to Noise Ratio
10 Hz to 60 kHz : +1 dB, –3 dB (8 ohms)
115 dB (IHF-A, 1 V input / Unbalanced
or 2 V input / Balanced)
14
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Memo
15
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Integra Division of
ONKYO U.S.A. CORPORATION
18 Park Way, Upper Saddle River, N.J. 07458, U.S.A.
Integra Division of
ONKYO CORPORATION
Sales & Product Planning Div. : 2-1, Nisshin-cho, Neyagawa-shi, OSAKA 572-8540, JAPAN
Tel: 072-831-8111 Fax: 072-831-8124
Printed in Japan
D0303-2
SN 29343446A
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