Integra Car Amplifier ADM 21 User Manual

Contents  
Before using  
2 Channel Amplifier  
Important Safeguards ....................................... 2  
Features ............................................................. 3  
Supplied accessory ........................................... 3  
Precautions........................................................ 3  
ADM-2.1  
Instruction Manual  
Facilities and connections  
Rear panel facilities and connections ............... 4  
Connection diagram.......................................... 5  
Front panel facilities and connections.............. 6  
Operations......................................................... 7  
Thank you for purchasing the Integra 2 Channel  
Amplifier.  
Appendix  
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 2 Channel Amplifier. Please  
retain this manual for future reference.  
Troubleshooting guide...................................... 7  
Specifications ................................... Back cover  
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Features  
Precautions  
1. Warranty Claim  
WIDE RANGE AMPLIFIER TECHNOLOGY (WRAT)  
You can find the serial number on the rear panel of this unit. In  
case of warranty claim, please report this number.  
WRAT virtually eliminates the adverse effects of counter-  
electromotive force by:  
2. Recording Copyright  
Recording of copyrighted material for other than personal use is  
illegal without permission of the copyright holder.  
1) applying an uncommonly low amount of NFB (negative feed-  
back),  
2) using carefully selected, high-tolerance, wide range parts in all  
critical sections, and  
3. AC Fuse  
The fuse is located inside the chassis and is not user-serviceable. If  
the power does not come on, contact your Integra/Onkyo autho-  
rized service station.  
3) incorporating innovative circuit topology based upon decades  
of high-end amplifier design experience — the final result is flat  
response beyond 100 kHz.  
4. Care  
AUTO POWER ON/OFF FUNCTION  
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, thinner, alcohol or other chemi-  
cal solvents or cloths since these could damage the finish or re-  
move the panel lettering.  
You can turn on and off the ADM-2.1 via a signal input to the  
AUDIO IN jacks or 12V TRIGGER IN jack.  
AUDIO IN/OUT LINK FUNCTION  
The signal inputs from the AUDIO IN jacks are output from the  
AUDIO OUT jacks. When used as a 2 channel amplifier in a multi  
room configuration, you can connect several ADM-2.1s to enjoy  
the same source in several rooms.  
5. 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 120 V, 60 Hz) written on the rear panel.  
For Canadian models  
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.  
Modele pour les Canadien  
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 JUSQU’AU FOND.  
Supplied accessory  
Check that the following accessory is supplied with the ADM-2.1.  
Power cord × 1  
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Rear panel facilities and connections  
Caution:  
• Insert all plugs and connectors securely. Improper connections  
can result in noise, poor performance, or damage to the  
• Be sure to always refer to the instructions that came with the  
component that you are connecting.  
equipment.  
Improper connection  
• Do not plug in the power cord until all connections have been  
made.  
• Do not make connections to input or output jacks while the  
ADM-2.1 is turned on.  
• Always turn the volume of the control amplifier or  
preamplifier down before turning on the ADM-2.1.  
Inserted completely  
• For input and output jacks, red connectors (marked R) are used  
for the right channel and white connectors (marked L) are used  
for the left channel.  
• Do not bind audio connection cables with power cords and  
speaker cables. Doing so may adversely affect the sound  
quality.  
AC INLET  
SPEAKERS  
GND  
2
CHANNEL AMPLIFIER  
MODEL NO. ADM-2.1  
L
L
INPUT  
LEVEL  
12 V  
AUDIO  
OUT IN  
TRIGGER  
TRIGGER  
L
L
12V  
AUDIO OFF TRIGGER  
R
R
IN  
R
R
MIN  
MAX  
GND  
TRIGGER  
Use this GND terminal for connecting the ground (or earth) wire  
of other component if humming noise is heard.  
Set this TRIGGER switch before turning on the ADM-2.1.  
To turn on the ADM-2.1 with the signal input from the 12V  
TRIGGER IN jack, set the TRIGGER switch to 12V TRIGGER.  
To turn on the ADM-2.1 with the signal input from the AUDIO IN  
jack, set the TRIGGER switch to AUDIO (Auto Power On/Off  
Function). If you do not use Auto Power Function, set the  
TRIGGER switch to OFF.  
AUDIO IN/OUT  
These are the analog audio inputs and outputs. Use an RCA-type  
audio connection cable to connect the output jacks of the device to  
the AUDIO IN jacks on the ADM-2.1. When connecting a control  
amplifier or preamplifier, connect the PRE OUT jacks to the  
AUDIO IN jacks.  
12V TRIGGER IN  
If you connect the AUDIO OUT jacks of the ADM-2.1 to the  
AUDIO IN jacks of another ADM-2.1, the signal input at the  
AUDIO IN jacks of the ADM-2.1 is also output from the AUDIO  
OUT jacks (Audio In/Out Link Function).  
If the connected control amplifiers or preamplifiers have a 12V  
TRIGGER output jack, use 1/8-inch 2P mini-jack cable to connect  
the 12V TRIGGER IN jack on the ADM-2.1. This jack works on  
between 5 to 12 volts DC. When the ADM-2.1 is in the standby  
state and the TRIGGER switch is set to 12V TRIGGER, you can  
switch the ADM-2.1 between the on and standby states with  
operations at the control amplifier or preamplifier.  
If you set the TRIGGER switch to AUDIO, the power of the  
connected ADM-2.1 turns on automatically when an audio signal  
is supplied to the AUDIO IN jacks (Auto Power On/Off Function).  
Note:  
When a plug is connected to the 12V TRIGGER jack, be sure to  
connect the analog output jacks (or PRE OUT jacks) of the device  
to the AUDIO IN jacks of the ADM-2.1. Otherwise, no sound will  
be produced.  
INPUT LEVEL  
Turn this INPUT LEVEL control to adjust the input level of the  
signal from the AUDIO IN jacks. Normally, set to MAX.  
Note:  
When a CD player is connected to the ADM-2.1, be sure to adjust  
the INPUT LEVEL control.  
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Rear panel facilities and connections  
• When you are using only one  
speaker or when you wish to  
listen to monaural (mono)  
sound, a single speaker should  
never be connected in parallel  
to both the right and left-  
channel terminals simultane-  
ously.  
SPEAKERS  
Connect the jacks on the speakers to the SPEAKERS terminals  
using the speaker cables. These terminals are compatible with  
banana plug connections.  
NO!  
1
2
3
4
5
Strip away 15 mm (5/8 in.) of wire insulation.  
Twist wire ends very tight.  
Unscrew.  
+
+
L
+
+
R
R
L
Insert wire.  
• To prevent damage to cir-  
cuitry, never short-circuit the  
positive (+) and negative (–)  
speaker wire.  
Screw.  
15mm  
(5/8 in.)  
1
3
2
5
NO!  
4
AC INLET  
Plug the supplied power cord into this AC INLET and then into the  
power outlet on the wall.  
• Do not use a power cord other than the one supplied with the  
ADM-2.1. The power cord supplied is designed for use with  
the ADM-2.1 and should not be used with any other device.  
• Do not connect any devices other than speakers to these  
terminals.  
• Never disconnect the power cord from the ADM-2.1 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.  
• 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.  
• Only connect speakers with an impedance of 6 ohms or higher.  
If a speaker with an impedance of less than 6 ohms is  
connected, it may damage the ADM-2.1.  
Connection diagram  
Since the many users will purchase the ADM-2.1 together with the  
DTR-7.1, here is an explanation of how to connect the ADM-2.1 to  
the DTR-7.1.  
When connecting the ADM-2.1 to 2 channel control amplifier or  
preamplifier, connect the AUDIO IN jacks of the ADM-2.1 to the  
PRE OUT FRONT jacks of the control amplifier or preamplifier,  
and connect the front speakers to the SPEAKERS terminals of the  
ADM-2.1.  
12V TRIGGER OUT jack  
DTR-7.1  
ANTENA  
AM  
FM  
75  
COMPONENT  
VIDEO  
RS 232  
R
L
REMOTE  
FRONT  
DIGITAL  
OUTPUT  
CONTROL  
SPEAKERS  
Y
(
)
12  
V
OPTICAL  
PRE  
OUT  
TRIGGER  
B
R
L
INPUT  
PB  
1
A
ZONE  
L
2
MAIN  
AC OUTLETS  
AC 120V 60Hz  
SWITCHED  
FRONT  
CENTER  
SPEAKER  
1
IR IN  
DIGITAL  
INPUT  
SURR  
BACK  
SPEAKER  
R
VIDEO  
S
VIDEO  
TOTAL 120W 1A MAX.  
(
)
OPTICAL  
SURR  
2
OUT  
PR  
VIDEO  
1
SURR  
BACK  
PRE OUT  
SURR BACK  
jacks  
(SB)  
GND  
R
R
L
L
1
IN  
OUT  
IN  
Y
DIGITAL  
INPUT  
COAXAL  
SUB  
WOOFER  
CENTER  
SURR  
SPEAKERS  
INPUT  
PB  
2
(
)
2
MAIN  
VIDEO  
2
CAUTION:  
R
L
SPEAKER IMPEDANCE  
FRONT  
SURR  
OUT  
PR  
ZONE  
2
6
OHMS MIN. PER EACH  
SPEAKERS  
SPEAKER TERMINAL  
TAPE  
IN  
VIDEO  
3
IN  
ZONE  
2
Y
AC INLET  
OUTPUT  
PB  
(SB)  
DVD  
SURR  
BACK  
AV RECEIVER  
CD  
PH  
IN  
MODEL NO. DTR-7.1  
SUB  
WOOFER  
PR  
ZONE  
OUT  
2
MONITOR  
OUT  
CENTER  
MULTI CHANNEL  
INPUT  
R
L
R
L
VIDEO  
S
VIDEO  
ADM-2.1  
AC INLET  
SPEAKERS  
GND  
2
CHANNEL AMPLIFIER  
MODEL NO. ADM-2.1  
L
L
Power cord  
(supplied)  
INPUT  
LEVEL  
12  
V
AUDIO  
TRIGGER  
TRIGGER  
OUT  
IN  
L
L
12V  
AUDIO OFF TRIGGER  
R
R
IN  
R
R
MIN  
MAX  
Set to 12V TRIGGER.  
Surround  
Surround  
back right  
speaker  
back left  
speaker  
To an AC  
wall outlet  
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Front panel facilities and connections  
Power  
On  
Off  
Standby/On  
ADM-2.1  
Power  
When the TRIGGER switch is set to AUDIO  
After plugging in the power cord into the rear panel and wall  
outlet, pressing this switch connects the ADM-2.1 to the AC  
mains. The function of this switch differs depending on the setting  
of the TRIGGER switch on the rear panel. Before turning on the  
power, be sure to set the TRIGGER switch. Besides, before  
turning on the power, make sure all cables are properly connected.  
If no signal is supplied to the AUDIO IN jacks, pressing the Power  
switch enters the standby state and the Standby/On indicator lights  
red after flashing red for 5 seconds.  
If an audio signal is supplied to the AUDIO IN jacks, pressing the  
Power switch turns on the ADM-2.1 and the Standby/On indicator  
lights orange after flashing red for 5 seconds.  
The TRIGGER switch is factory set to OFF.  
If the ADM-2.1 is in the standby state, the ADM-2.1 turns on  
automatically when an audio signal is supplied to the AUDIO IN  
jacks.  
When the TRIGGER switch is set to OFF  
When the signal input to the AUDIO IN jacks is not supplied for  
more than 4 minutes, the indicator turns to red and the ADM-2.1  
enters standby state (Auto Power On/Off Function).  
Pressing the Power switch turns on the ADM-2.1. The Standby/On  
indicator lights orange after flashing red for 5 seconds.  
Press the Power switch again to turn off the ADM-2.1.  
Press the Power switch to turn off the ADM-2.1.  
When the TRIGGER switch is set to 12V TRIGGER  
Note:  
If no signal is supplied to the 12V TRIGGER IN jack, pressing the  
Power switch enters the standby state and the Standby/On  
indicator lights red.  
You cannot use the Auto Power On Function when the power is  
turned off. To use the Auto Power On Function, leave the  
ADM-2.1 in the standby state once the ADM-2.1 enters the  
standby state.  
If 12V DC is supplied to the 12V TRIGGER IN jack, pressing the  
Power switch turns on the ADM-2.1 and the Standby/On indicator  
lights orange after flashing red for 5 seconds.  
If the ADM-2.1 is in the standby state, the ADM-2.1 turns on  
automatically when 12V DC is supplied to the 12V TRIGGER IN  
jack.  
Standby/On indicator  
The Standby/On indicator lights red when the ADM-2.1 is in the  
standby state and lights orange when the ADM-2.1 is turned on.  
When the signal input to the 12V TRIGGER IN jack is interrupted,  
the indicator lights red and the ADM-2.1 enters standby state  
(Auto Power On/Off Function).  
Press the Power switch to turn off the ADM-2.1.  
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Operations  
Troubleshooting guide  
To listen to music or view your favorite movies, follow the  
operations below.  
No power.  
• The power cord is disconnected.  
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 or the  
preamplifier.)  
Connect the power cord.  
• The setting of the TRIGGER switch is wrong.  
Set the TRIGGER switch to the appropriate position.  
• With the TRIGGER switch set to a position other than OFF,  
the Power switch is pressed again immediately after turning  
the power off.  
1. Lower the volume at the control amplifier or  
preamplifier.  
Be sure to leave more than 3 seconds before turning the  
power on again.  
Lower the volume of the control amplifier or preamplifier to  
the minimum so that when the ADM-2.1 is turned on, you do  
not hear loud unwanted sounds.  
Power turns on but no sound.  
2. Select the input on the control amplifier or  
preamplifier.  
• Bad connections or wiring.  
Check connections, speaker cables, etc.  
Select the proper input on the control amplifier or  
preamplifier.  
• Amplifier protection circuitry has been activated.  
Contact your Integra/Onkyo Service Center.  
• The INPUT LEVEL control is set to MIN.  
Turn the INPUT LEVEL control to adjust the input  
level.  
3. Slowly increase the volume of the control  
amplifier or preamplifier.  
Now all that remains is to control the control amplifier or  
preamplifier and the other connected system components to  
enjoy your music or movies.  
The Standby/On indicator does not light when the Power  
switch is pressed.  
• Bad connections or wiring.  
Check if the power cord is properly connected. If the  
indicator still does not light, turn off the ADM-2.1,  
disconnect the power cord, and contact your Integra/  
Onkyo Service Center.  
The Standby/On indicator flashes red for more than  
7 seconds when the Power switch is pressed.  
A malfunction.  
Press the Power switch to turn off the ADM-2.1. After  
3 seconds, press the Power switch again to turn on the  
ADM-2.1. If the indicator still flashes, turn off the  
ADM-2.1, disconnect the power cord, and contact your  
Integra/Onkyo Service Center.  
No sound from the speaker, or at very low volume.  
• Bad connections or wiring.  
Check connections, speaker cables, etc.  
• The INPUT LEVEL control is set to MIN.  
Turn the INPUT LEVEL control to adjust the input  
level.  
• The settings on the control amplifier or preamplifier are  
wrong.  
Check the settings on the control amplifier or  
preamplifier.  
The left and right sounds are unbalanced or reversed.  
• Bad connections or wiring.  
Check connections, speaker cables, etc.  
• The polarity of the speaker cable is wrong.  
Check the polarity of the speaker cable.  
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Specifications  
AMPLIFIER SECTION  
GENERAL  
Power Output:  
100 Watts per channel min. RMS at  
Power Supply:  
AC 120 V, 60 Hz  
2.5 A  
8 ohms, both channel driven from  
20 to 20,000 Hz with no more than  
0.08 % total harmonic distortion.  
Power Consumption:  
Dimensions (W × H × D):  
435 × 145 × 316 mm  
17-1/8" × 5-11/16" × 12-7/16"  
8.5 kg, 18.7 lbs.  
125 Watts per channel min. RMS at  
6 ohms, both channel driven from  
1 kHz with no more than 0.1 %  
total harmonic distortion.  
Weight:  
Specifications and features are subject to change without notice.  
Dynamic Power Output:  
Total Harmonic Distortion:  
IM Distortion:  
2 × 140 Watts at 8 ohms  
0.08 % at rated power  
0.08 % at rated power  
100 at 8 ohms  
Damping Factor:  
Input Sensitivity and Impedance: 1 V, 50 kohms  
Output Level and Impedance:  
Rated Speaker Impedance:  
Frequency Response:  
1 V, 10 kohms  
6 ohms MIN  
10 Hz – 100 kHz, ±1 dB  
110 dB (IHF A, 0.5 V input)  
Signal-to-Noise Ratio:  
Integra Division of  
ONKYO U.S.A. CORPORATION  
200 Williams Drive, Ramsey, N.J. 07446, U.S.A.  
Tel: 201-825-7950 Fax: 201-825-8150 E-mail: [email protected]  
Integra Division of  
ONKYO CORPORATION  
Sales & Product Planning Div. :  
2-1, Nisshin-cho, Neyagawa-shi, OSAKA 572-8540, JAPAN  
Tel: 072-831-8111 Fax: 072-833-5222  
E
W0008-1  
SN 29343005  
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