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5

Initially, turn the input-sensitivity
LEVEL control to its maximum
(counter-clockwise) position. Turn
on the source unit and increase the
volume control until it is approxi-
mately three-quarters of maximum-
output level. Slowly increase the
input LEVEL control (clockwise)
while listening to the quality of the
reproduced sound. When you hear
distortion on the music peaks, turn
the LEVEL control back slightly. This
is the maximum undistorted output
level of your system. Turning the
LEVEL control up farther WILL NOT
INCREASE THE OUTPUT POWER
OF YOUR AMPLIFIER! It will only
decrease the amount of volume-
control rotation before the amp is at
full-output power. It will also
increase the amount of extraneous
noise present in your system.

Connect a pair of signal cables with
RCA-type ends between the connec-
tors on the amplifier and the RCA-
type signal connectors on the
source unit. If your radio has only
speaker-level outputs, you should
connect them to the speaker-level
input connectors, observing proper
polarity. When using the speaker-
level inputs, it is not necessary to
connect a wire between the
“remote” terminal of the amplifier
and the “remote” lead from the
source unit. The speaker-level
inputs will sense voltage on the
speaker outputs and turn the ampli-
fier on automatically.
If you are installing a P80.4 amplifier
and your source unit has only one
pair of RCA-type output connectors
and a pair of speaker-level outputs,
you may connect the RCA outputs
to a pair of amplifier input channels
(front or rear), and the speaker-level
outputs to the other pair of amplifier
input channels.

Refer to figures 1–6 for location of
adjustment switches and controls.
Electronic Crossover and Bass Boost
P80.2, P80.4, P180.2
The electronic crossover can be
selected as a 12dB/oct. high-pass fil-
ter (HPF) 12dB/oct. low-pass filter
(LPF) or it can be defeated (FLAT).
The crossover frequency can be set
at any frequency between 32Hz and
320Hz.
BP150.1, BP300.1
These amplifiers are designed to 
drive subwoofers. Consequently, the 
electronic crossover is a 12dB/oct. 
low-pass filter which can be set at
any frequency between 32Hz and
320Hz.
The bass boost control will provide
up to 6dB of boost at 50Hz.

The BP150.1 and BP300.1 are
designed to provide constant bass
regardless of the position of the
source unit’s front-to-rear fader posi-
tion. Use of this feature requires that
all four inputs are connected to the
source unit as labeled on the ampli-
fier (front, rear, right and left). If your
source unit has only one pair of
RCA-type output connectors and a
pair of speaker-level outputs, you
may connect the RCA outputs to a
pair of amplifier input channels
(front or rear), and the speaker level
outputs to the other pair of amplifier
input channels. If nonfading bass is
not important in your system, con-
nect a pair of inputs, either speaker-
level or RCA-type, to either the front
or rear input connectors on the
amplifier. 

6

No Audio 

Short circuit in speaker or speaker wire. Disconnect speaker leads one at a time to determine 

(Red LED flashes every four seconds)

which speaker or wire is shorted or defective.
Repair the short circuit or replace bad speaker.

No Audio 

No voltage at BATT or REM terminals.

Check voltage at amplifier terminals with VOM.

(Power indicator is off)

Bad or no ground connection.

No Audio

Amplifier overheated.

Make sure amplifier cooling isn’t prevented by mounting location,

(Green power LED is lit)

make sure speaker-system impedance is within limit (see Specifications).

No Audio

Excessive voltage on B (+) connection.

Check vehicle charging system for defective voltage regulator.

(Red LED stays lit) 

Distorted Audio

Input sensitivity not set properly; 

Check LEVEL setting.

amplifier or source unit defective.

Music lacks “punch”

Speakers are not connected properly.

Check speaker connections for proper polarity.

7

Power Output, 

40W x 2

90W x 2

40W x 4

75W

150W

4 ohms

Power Output, 

80W x 2

180W x 2

80W x 4

150W

300W

2 ohms

Power Output, 

160W x 2

360W x 1

160W x 2

NA

NA

4 ohms Bridged

Minimum speaker 

2 ohms

2 ohms

2 ohms

1 ohm*

1 ohm*

impedance

Frequency 

10Hz – 50kHz

10Hz – 50kHz

10Hz – 50kHz

10Hz – 320Hz

10Hz – 320Hz

Response

Input Sensitivity 

250mV – 4V

250mV – 4V

250mV – 4V

250mV – 4V

250mV – 4V

(RCA type)

THD + Noise

0.05%

0.05%

0.05%

0.10%

0.10%

(4 ohms)

Signal-to-Noise

>100dB

>100dB

>100dB

>90dB

>90dB

Maximum 

24 amps

45 amps

43 amps

14 amps

29 amps

Current Draw

Fuse Requirement

20A

20A x 2

20A x 2

20A

20A x 2

Dimensions 

8-3/4 x 8 x 2-11/16"

9-1/16 x 12-9/16 x 2-11/16"

9-1/16 x 12-9/16 x 2-11/16"

8-3/4 x 8 x 2-11/16"

11-3/4 x 7-5/8 x 2-11/16"

(H x W x L)

222 x 205 x 67.5mm 

229 x 319 x 67.5mm 

229 x 319 x 67.5mm

222 x 205 x 67.5mm

293 x 189 x 67.5mm

* No increase in output power over 2

Ω

rating.

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

 

standards:

EN
EN 

55013/A12/8.1994
55020/12.1994

Steen Michaelsen

Birkerød. DENMARK. 6/99

JBL Consumer Products  250 Crossways Park Drive, Woodbury, NY 11 797

www.jbl.com  

©

1999 JBL, Incorporated  JBL is a registered trademark of JBL, Incorporated.

Part No. PSAMPOM  5/99