JBL Stereo Amplifier DA1002 User Manual

D E C A D E  
A M P L I F I E R S D A 4 0 0 2 , D A 6 5 0 2 , D A 3 5 0 4 , D A 1 0 0 2  
GENUINE JBL  
 
6
6
8
9
9
7
1
8
2
SPEAKER INPUT  
INPUT SPEAKER  
MODE  
INPUT  
INPUT  
MODE  
LINE INPUT  
INPUT  
LEVEL  
BASS  
EQ  
CROSS  
OVER  
CROSS  
OVER  
BASS  
EQ  
INPUT  
LEVEL  
LINE INPUT  
+
L
+
R
L
+
R
SPEAKER INPUT LINE INPUT  
INPUT  
LEVEL  
BASS EQ  
CROSSOVER  
R
L
R
L
L
L
+
R
R
+
MONO  
STEREO  
STEREO  
MONO  
R
L
+
+
OFF 6dB LPF HPF  
LPF HPF OFF 6dB  
FLAT  
1
10  
1
10  
FLAT  
+
OFF 6dB  
LPF FLAT HPF  
1
10  
2
1
2
1
7
7
5
4
5
3
3
4
BRIDGED  
+
REM GND() BATT(+)  
FUSE  
REAR  
BRIDGED  
FRONT  
BRIDGED  
POWER  
FUE  
+
+
+
LEFT  
RIGHT +  
+
LEFT  
RIGHT +  
REM GND() BATT(+)  
30 AMP  
20 AMP  
+
LEFT  
RIGHT +  
SPEAKER OUTPUT  
POWER  
SPEAKER OUTPUT  
DA4002/DA6502  
DA3504  
7
2
8
1
9
Controls and Connectors  
1. Pre-amp Line Level Input Connector –  
Connects to line-level output from the  
source unit.  
2.Floating Ground Factory-Head-Unit  
Interface Speaker Input – Connects to  
speaker level output from the source  
unit (2-channel on DA4002, DA6502,  
DA1002; 2 separate 2-channel connec-  
tors on DA3504).  
3.Speaker-Output Connector – 2-channel  
on DA4002, DA6502 and DA1002; 4-  
channel on DA3504.  
4.Fuse – DA4002: 15A ATC,  
DA6502: 20A ATC, DA1002 2x 20A ATC,  
DA3504: 30A ATC.  
5.Power Connector – Connection for  
12V+, Gnd and Rem in.  
6.Input-Mode Switch – Sums left and  
right inputs.  
SPER INPUT LINE INPUT  
INPUT LEVEL  
BASS
LOW PA
FILTE
L
L
+
R
R
+
R
+
OFF 6dB  
OFF 70Hz 100Hz  
1
10  
+
+
L
L
R
7. Input-Level Control – Adjusts input sen-  
sitivity for pre-amp level and speaker  
level inputs.  
8.Crossover Selector – Determines  
whether the crossover is a High-Pass  
filter @120Hz (HP), a Low-Pass filter  
@120Hz (LP) or unfiltered (FLAT). Low-  
pass filter frequency selector (DA1002).  
9.Bass E.Q. – Enables bass boost +6dB  
@ 50Hz.  
5
3
4
20 AMP  
SPEAKR OUTPUT  
POWER  
FUSE  
20 AMP AMP  
BRIDGED  
+
+
+
REGND() BATT(+)  
LEFT  
RIGHT  
DA1002  
3
 
Wiring the Speaker Output  
Connections  
1. Connect the speakers, observing  
proper polarity, to the speaker output  
barrier strip on the amplifier using at  
least 16G high-quality speaker wire.  
(Note:The total impedance of the  
speakers connected to the outputs  
when the amp is driven in stereo must  
be at least 2 ohms.)  
2. If you are bridging the amplifier, con-  
nect the speaker wires to the terminals  
marked “bridge, observing proper  
polarity. (Note:The total impedance of  
the speaker system to be connected to  
the amplifier must be at least 4 ohms  
in bridge mode.)  
3. If you are running the amp inTri-Mode  
(stereo and mono simultaneously to  
one or two pairs of satellite speakers  
and a subwoofer), refer to the chart  
below to determine the capacitor and  
inductor values you’ll need to route  
bass signals to the woofer, and  
midrange and high frequencies to the  
satellite speakers.These passive  
crossover components will also ensure  
that the impedance of the speaker  
system doesn’t drop below 2 ohms.  
FREQUENCY INDUCTOR CAPACITOR  
Crossover 6dB/oct. LP 6dB/oct. HP  
(4 ohm)  
(4 ohm)  
Mounting the Amplifier  
75Hz  
8.0mH  
6.4mH  
5.0mH  
4.2mH  
3.6mH  
3.2mH  
530µF  
400µF  
318µF  
265µF  
227µF  
198µF  
The JBL Decade Series amplifiers can be  
mounted in virtually any location inside  
the vehicle. However, make sure to keep  
the amplifier away from heater vents or  
ducts.  
1. At the chosen site, use the amplifier  
as a mounting template and mark the  
locations of the four mounting holes.  
2. Drill a small pilot hole at each marked  
location.  
100Hz  
125Hz  
150Hz  
175Hz  
200Hz  
2. Locate the 3-connection barrier strip  
labeled +Batt, Rem and Gnd. Connect a  
black wire (at least 12G for DA4002,  
10G for DA6502, DA1002 and DA3504)  
to the Gnd terminal and connect the  
other end to the nearest bare-metal  
chassis component.Then, connect a  
red wire (at least 12G for DA4002, 10G  
for DA6502, DA1002 and DA3504) from  
the vehicles +12-volt battery terminal  
to the +Batt terminal on the barrier  
strip. Finally connect a blue wire (16G)  
to the Rem terminal on the barrier strip  
and connect the other end to the Rem  
output of the source unit.  
Wiring the Input Connections  
1. If you are using conventional RCA  
input connections and a source unit  
with output voltage less than 4V, sim-  
ply plug the RCA plugs into the RCA  
jacks on the amplifier.  
2. If you are connecting the amplifier to a  
factory-installed source unit, or to a  
source unit that only has speaker-level  
outputs, connect the speaker outputs of  
the source to the speaker input plug on  
the amp using the connector provided.  
3. Mount the amplifier and securely  
tighten the mounting screws.  
Wiring the Power Connections  
Refer to diagrams on page 3 for connec-  
tor locations.  
1. For power, remote and speaker wires,  
strip 1⁄4" off one end of each jacket to  
reveal bare wire for insertion into the  
barrier strip connectors.  
4
 
Observe the following color-codes:  
Left+: White  
Left–: White with black stripe  
Initially, turn the input sensitivity GAIN  
control to its minimum (counter-clock-  
wise) position.  
Right+: Gray  
At some point, you’ll hear distortion  
on the music peaks. Stop the adjust-  
ment and turn it back slightly.This is  
the maximum undistorted output level  
of your system, and should not be  
exceeded during use.  
3.After adjusting the level of the main  
speakers in your system, you should  
adjust the remaining channels (if you  
are using a DA3504 or a multi-amp  
system) for the desired system bal-  
ance.You’ll find this easiest to do by  
adjusting the channels in the following  
order: 1) front speakers, 2) rear speak-  
ers, 3) subwoofer. Elaborate, multi-  
channel systems may be too complex  
to adjust.Your local JBL installation  
specialist is the best person to help  
with such adjustments.  
Right–: Gray with black stripe  
4. If you are connecting your Decade  
Series amplifier to a source unit with  
output voltage higher than 4V, connect  
the output signal wires of the source  
unit to the floating ground factory head  
unit inputs. Because the inputs have an  
impedance of 100K ohms, this connec-  
tion will provide the best noise-free  
performance possible.  
1. Reconnect the (–) negative lead to  
your vehicles battery. Apply power to  
the audio system and play a favorite  
music track from a CD or tape. (Note:  
After the source unit is on, the JBL  
badge (on the top panel) will illumi-  
nate, indicating the amplifier is on. If  
not, check the wiring, especially the  
remote connection from the source  
unit. Also refer to “Troubleshooting”  
on page 7.)  
2.On the source unit, increase the volume  
control until it is approximately 3/4 of  
its maximum output level. Slowly  
increase the Input Sensitivity control  
(clockwise) toward three o’ clock and, at  
the same time, listen to the quality of  
the reproduced sound.  
Setting Input Sensitivity  
Proper input sensitivity control settings  
on Decade Series power amplifiers are  
critical to ensure optimum performance,  
low noise levels and maximum system  
reliability. As a general rule, controls at  
the front end of a system (source, equal-  
izers and other processors) should be set  
as high as possible with the amplifier  
input sensitivity set as low as possible  
while still providing adequate volume lev-  
els. Using a high signal level and a low  
sensitivity setting will help keep back-  
ground noise in the system to a  
System Setup and Adjustment  
Electronic Crossover  
The electronic crossover(s) in your  
Decade Series amplifier can be selected  
as a 12dB/oct. high-pass filter at 120Hz  
(HPF), a 12dB/oct. low-pass filter at 80Hz  
(LPF) or it can be defeated (FLAT).  
minimum.  
5
 
Figure 1  
SPEAKER INPUT LINE INPUT  
INPUT  
LEVEL  
BASS EQ  
CROSSOVER  
BRIDGED  
+
+
REM GND() BATT(+)  
FUSE  
L
L
+
R
R
+
R
L
15 AMP  
+
OFF 6dB  
LPF FLAT HPF  
1
10  
+
LEFT  
RIGHT  
SPEAKER OUTPUT  
POWER  
Figure 2  
Applications  
For your convenience, we’ve included  
several application diagrams to help you  
plan your own system installation.  
Figures 1 through 4 show how to config-  
ure the Decade Series power amplifiers  
for stereo, bridged-mono and tri-mode  
operation.  
20 AMP  
SPEAKER OUTPUT  
POWER  
FUSE  
20 AMP 20 AMP  
BRIDGED  
RIGHT  
+
+
SPEAKER INPUT LINE INPUT  
INPUT LEVEL  
BASS EQ  
LOW PASS  
FILTER  
+
LEFT  
REM GND() BATT(+)  
L
L
+
R
R
+
R
L
+
OFF 6dB  
OFF 70Hz 100Hz  
1
10  
+
+
L
R
Figure 3  
(Note: For simplicity, figures do not  
show power, remote and input connec-  
tions.)  
Figure 1.This wiring diagram shows a  
DA4002, DA6502 amplifier set to stereo  
to drive a pair of full-range speakers.  
Figure 2.This wiring diagram shows a  
DA1002 amplifier set to bridge mode  
(mono) to drive a single subwoofer.  
Figure 3.This wiring diagram shows a  
DA4002, DA6502 amplifier set for tri-  
mode operation. For a desired crossover  
frequency, use the chart on page 4 to  
select an inductor for the subwoofer,  
and corresponding capacitors for left  
and right speakers.  
SPEAKER INPUT LINE INPUT  
INPUT  
LEVEL  
BASS EQ  
CROSS OVER  
BRIDGED  
+
REM GND() BATT(+)  
FUSE  
L
L
+
R
R
+
R
+
OFF 6dB  
LPF FLAT HPF  
20 AMP  
1
10  
+
LEFT  
RIGHT +  
L
SPEAKER OUTPUT  
POWER  
Figure 4  
Figure 4.This wiring diagram shows a  
DA3504 set to drive a pair of 5-1/4"  
2-way speakers with the two front  
channels, and the rear channels set  
to drive a single subwoofer in bridge  
mode.  
REAR  
BRIDGED  
RIGHT +  
FRONT  
BRIDGED  
POWER  
FUSE  
SPEAKER INPUT  
INPUT MODE  
INPUT SPEAKER  
MODE  
INPUT  
+
+
LINE INPUT  
INPUT  
LEVEL  
BASS  
EQ  
CROSS  
OVER  
CROSS  
OVER  
BASS  
EQ  
INPUT  
LEVEL  
LINE INPUT  
R
+
LEFT  
+
LEFT  
RIGHT +  
REM GND() BATT(+)  
30 AMP  
+
+
R
L
+
R
L
R
L
MONO  
STEREO  
STEREO  
MONO  
+
+
OFF 6dB LPF HPF  
10  
LPF HPF OFF 6dB  
FLAT  
1
1
10  
FLAT  
L
SPEAKER OUTPUT  
6
 
Troubleshooting  
Use the following guide to identify  
symptoms and solve problems. Make  
sure the vehicles electrical system is  
working properly and power is reaching  
the amplifiers power connector.  
Declaration of Conformity  
Symptom  
Likely Cause  
Solution  
No audio  
Low/no remote on voltage  
Check connections; turn-test turn-on voltage  
Speakers are not connected  
or are blown  
Check wiring; use VOM/DVM to measure speaker coil  
resistance  
We, JBL Europe A/S  
Kongevejen 194B  
DK-3460 Birkerød  
DENMARK  
Distorted audio  
Input sensitivity is not set properly  
See Setting Input Sensitivity on page 5  
Audio lacks “punch”  
Speakers are wired with  
wrong polarity  
Check polarity of connections; refer to Applications  
declare in own responsibility, that the products described  
in this owner’s manual are in compliance with technical  
standard:  
Audio cycles off and on;  
amber protection LED  
(JBL badge on top panel)  
is not lit  
A protection circuit is turning  
amplifier off and on  
Verify the following: off electrical system is between  
5 ~ 18 Vdc; temperature is not over 194°F (90°C);  
no short circuits; speaker loads are not less than 2 ohms  
(4 ohms in mono)  
EN 55 020/6.1988  
Audio cycles off and on;  
GAIN is set too high  
Set Input Sensitivity correctly (see page 5)  
amber protection LED  
(JBL badge on top panel) is not lit  
Steen Michaelsen  
JBL Europe A/S  
Birkerød. DENMARK. 3/98  
Fuse blows  
Incorrect wiring or  
short circuit  
Check connections; refer to Applications  
7
 
Specifications  
DA4002, DA6502, DA1002, DA3504  
Specifications  
DA4002  
DA6502  
DA3504  
DA1002  
Power Output, 4 ohms:  
Power Output, 2 ohms:  
2 x 40 watts  
2 x 50 watts  
2 x 65 watts  
2 x 75 watts  
150 watts  
4 x 35 watts  
4 x 50 watts  
2 x 100 watts  
2 Hz ~ 20kHz +1dB, –2dB  
250 mV ~ 4V  
0.1 %  
2 x 100 watts  
2 x 150 watts  
300 watts  
Power Output, Bridged 4 ohms: 100 watts  
Frequency Response:  
Input Sensitivity:  
20Hz ~ 20kHz +1dB, –2d  
20Hz ~ 20kHz +1dB, –2dB  
250 mV ~ 4V  
0.1 %  
20Hz ~ 20kHz +1dB, –2dB  
250 mV ~ 4V  
0.1 %  
250 mV ~ 4V  
0.1 %  
THD + Noise (4 ohms):  
Signal-to-Noise:  
>90dB  
>90dB  
>90dB  
>90dB  
Maximum Current Draw:  
Dimensions (W x H x L):  
18A  
14A  
34A  
32A  
9-5/8" x 2-1/4" x 8-1/4"  
244 x 57 x 210mm  
9-5/8" x 2-1/4" x 9-3/4"  
244 x 57 x 248mm  
11-5/8" x 2-9/16" x 11-7/8"  
295 x 65 x 300mm  
11-5/8" x 2-9/16" x 11-5/16"  
295 x 65 x 290mm  
JBL Consumer Products  
250 Crossways Park Drive  
Woodbury, NY 11797  
Part No. DECAMPOM  
Made in Korea  
 

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