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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. 

(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.
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.

6

+

–

+

–

+

–

–

+

15

+

–

+

–

+

–

–

+

20

+

–

–

+

+
+

–

–

+

–

–

+

20

20

+

+

–

–

+

–

+

–

+

–

+

–

+

–

+

–

+

–

+

–

+

–

+

–

–

+

30

+

–

+

–

–

–

+

–

DA OM  7/14/98 11:38 AM  Page 6

7

No audio

Low/no remote on voltage

Check connections; turn-test turn-on voltage

Speakers are not connected 

Check wiring; use VOM/DVM to measure speaker coil 

or are blown

resistance

Distorted audio

Input sensitivity is not set properly

See Setting Input Sensitivity on page 5

Audio lacks “punch”

Speakers are wired with 

Check polarity of connections; refer to Applications

wrong polarity

Audio cycles off and on;

A protection circuit is turning 

Verify the following: off electrical system is between

amber protection LED

amplifier off and on

5 ~ 18 Vdc; temperature is not over 194°F (90°C); 

(JBL badge on top panel)

no short circuits; speaker loads are not less than 2 ohms 

is not lit

(4 ohms in mono)

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

Fuse blows

Incorrect wiring or

Check connections; refer to Applications

short circuit

Declaration of Conformity

Kongevejen 194B 
DK-3460 Birkerød
DENMARK

declare in own responsibility, that the products  

  described

in this owner’s manual are in compliance with technical

 

standard:

EN 55 020/6.1988

Steen Michaelsen

Birkerød. DENMARK. 3/98

Use the following guide to identify
symptoms and solve problems. Make
sure the vehicle’s electrical system is
working properly and power is reaching
the amplifier’s power connector.

DA OM  7/14/98 11:38 AM  Page 7

JBL Consumer Products
250 Crossways Park Drive

Woodbury, NY 11797

www.jbl.com

Part No. DECAMPOM
Made in Korea

Power Output, 4 ohms:

2 x 40 watts

2 x 65 watts

4 x 35 watts

2 x 100 watts

Power Output, 2 ohms:

2 x 50 watts

2 x 75 watts

4 x 50 watts

2 x 150 watts

Power Output, Bridged 4 ohms:

100 watts

150 watts

2 x 100 watts

300 watts

Frequency Response:

20Hz ~ 20kHz +1dB, –2d

20Hz ~ 20kHz +1dB, –2dB

2 Hz ~ 20kHz +1dB, –2dB

20Hz ~ 20kHz +1dB, –2dB

Input Sensitivity:

250 mV ~ 4V

250 mV ~ 4V

250 mV ~ 4V

250 mV ~ 4V

THD + Noise (4 ohms):

0.1 %

0.1 %

0.1 %

0.1 %

Signal-to-Noise:

>90dB

>90dB

>90dB

>90dB

Maximum Current Draw:

18A

14A

34A

32A

Dimensions (W x H x L):

9-5/8" x 2-1/4" x 8-1/4"

9-5/8" x 2-1/4" x 9-3/4"

11-5/8" x 2-9/16" x 11-7/8"

11-5/8" x 2-9/16" x 11-5/16"

244 x 57 x 210mm

244 x 57 x 248mm

295 x 65 x 300mm

295 x 65 x 290mm

DA OM  7/14/98 11:38 AM  Page 8

JBL Consumer Products
250 Crossways Park Drive

Woodbury, NY 11797

www.jbl.com

Part No. DECAMPOM
Made in Korea

Power Output, 4 ohms:

2 x 40 watts

2 x 65 watts

4 x 35 watts

2 x 100 watts

Power Output, 2 ohms:

2 x 50 watts

2 x 75 watts

4 x 50 watts

2 x 150 watts

Power Output, Bridged 4 ohms:

100 watts

150 watts

2 x 100 watts

300 watts

Frequency Response:

20Hz ~ 20kHz +1dB, –2d

20Hz ~ 20kHz +1dB, –2dB

2 Hz ~ 20kHz +1dB, –2dB

20Hz ~ 20kHz +1dB, –2dB

Input Sensitivity:

250 mV ~ 4V

250 mV ~ 4V

250 mV ~ 4V

250 mV ~ 4V

THD + Noise (4 ohms):

0.1 %

0.1 %

0.1 %

0.1 %

Signal-to-Noise:

>90dB

>90dB

>90dB

>90dB

Maximum Current Draw:

18A

14A

34A

32A

Dimensions (W x H x L):

9-5/8" x 2-1/4" x 8-1/4"

9-5/8" x 2-1/4" x 9-3/4"

11-5/8" x 2-9/16" x 11-7/8"

11-5/8" x 2-9/16" x 11-5/16"

244 x 57 x 210mm

244 x 57 x 248mm

295 x 65 x 300mm

295 x 65 x 290mm

DA OM  7/14/98 11:38 AM  Page 8