JBL BpX1100 Schematic

BPX1100.1

2 CHANNEL
POWER AMPLIFIER

SERVICE MANUAL

JBL CONSUMER PRODUCTS
250 CROSSWAYS PARK DRIVE, WOODBURY, NY 11797
8500 BALBOA BOULEVARD, NORTHRIDGE, CA91329
WWW.JBL.COM

Power Amplifier

BPX1100.1

Controls and connections

Specifications ..........................................................1

Features ..................................................................2

Test Conditions and Notes .........................................2

Controls and Connections ..........................................3

Mounting the amplifier................................................3

Typical System Configuration (Wiring) .........................4

Printed Circuit Boards (Top View)................................5~7

Parts Lists..............................................................8~11

Block Diagrams......................................................12

Packaging Exploded View........................................13

Integrated Circuit Diagrams......................................14~16

Transistor Diagrams................................................17~18

Schematic Diagrams...............................................19~21

Amplifier Exploded View...........................................22

SPECIFICATIONS

Power Output,4 Ohoms . . . . . . . . . . . . . . . . . . .

Power Output,2 Ohoms . . . . . . . . . . . . . . . . . . .

Power Output,Bridged, 4 Ohoms . . . . . . . . . . . . . . .

Power Output,Parallel, 1 Ohoms . . . . . . . . . . . . . . .

MIN.Speaker Impedance . . . . . . . . . . . . . . . . . .

Frequency Response . . . . . . . . . . . . . . . . . . .

N/A
575W x 2
1100W x 1

1100W x1
1 ohm

20Hz ~ 320KHz,-3dB

Input Sensitivity (RCA type) . . . . . . . . . . . . . . ..

THD + Noise (4 Ohms) . . . . . . . . . . . . . . . . . . .

Signal-to-Noise . . . . . . . . . . . . . . . . . . . .

Maximum Current Draw. . . . . . . . . . . . . . . . . . . .

Fuse Replacement. . . . . . . . . . . . . . . . . . . . . .

250mV~6V

0.5%

93dB

110A

30A x 3

External Dimensions (Inches)

Length . . . . . . . . . . . . . . . . . . . . . . . . . . .

Width . . . . . . . . . . . . . . . . . . . . . . . . . . .

Depth . . . . . . . . . . . . . . . . . . . . . . . . . . .

12-1/4

17

2-9/16

External Dimensions (mms)

Length . . . . . . . . . . . . . . . . . . . . . . . . . . .

Width . . . . . . . . . . . . . . . . . . . . . . . . . . .

Depth . . . . . . . . . . . . . . . . . . . . . . . . . . .

312

432

66

JBL continually strives to improve its products. New materials, production methods and design refinements are
introduced into existing models without notice as a routine expression of our design philosophy. For this reason,
BP Series Multichannel Automotive Amplifiers may differ in some respects from their published specifications
and descriptions, but will always equal or exceed the original specifications unless otherwise stated.

1

Power Amplifier

Features

2-Channel Operation
Advanced MOSFET Oversized Floating Rail Power Supply
Floating Ground Factory - Head - Unit Speaker - Level input
Variable Input Sensitivity (250mV - 6V)
Fully Complementary Output Stage with Class-D Voltage Amplification
Gold-plated Power, Input and Output Connectors
1-Ohm Stable ( 2 ohm parallel )

BPX1100.1

Test Conditions and Notes

All tests to be done, unless otherwise specified, from 20Hz to 320Hz at 14.4V DC into 2 ohm loads and adjust
the units gain so that with a .775 volt input signal the unit is at its maximum rated output. All measurements
will be done using an Audio precision system one and the supply voltage.

An A+ line voltage of 14.4V DC shall be applied to the unit under test for all measurements unless otherwise
specified. The voltage applied to the unit shall be measured at the power connection on the Amplifier.

Signal Source
Unless otherwise specified, all tests shall be conducted with the Audio Signal Generator output configured to
be balanced, less than or equal to 50 ohm source impedance, and floating. The signal source "GND" shall be
connected to the Amplifier PWR GND at the Amplifier.

Output Load
Unless otherwise specified, all tests shall be conducted with 2 ohm resistive loads having less than 10%
reactive components at any frequency below 350Hz. Each resistor shall have a value that remains within 1%
while dissipating the rated output of the unit under test.

Power Indicator LED steadily illuminates for normal operation. LED blinks when
protection circuitry is engaged, and during power up.

2

Power Amplifier

BPX1100.1

Controls and Connections

1 2 3

1011

9

8

Controls and Connections

1. Power Connection for 12V+, GND and REM
connections for power wires. See wiring instruc­ tions on page 4 for more information.

2. Fuse - Three 30 Amp ATC type Fuses.

3. Speaker Output Connector - Connect speaker
wiring to these connectors. See wiring instruc­ tions on page 4 for more information.

4. Preamp-Level Input Connector - Connects to
line-level output from the source unit.

5. Pre amp-Level AUX output Connector

6. Input-Level Control - Adjusts input sensitivity
for pre-amp level and speaker level inputs.

Mounting the Amplifier

7

7. This switch is select X-over slope

8. This switch is set to 2-channel mode(2CH/BR) to drive
a pair of subwoofers or bridge(mono) mode to drive a
single subwoofer(PARALLEL).
It's allowed to use parallel mode when the nominal
impedance of the speaker system is 2 ohm or greater

9.

Remotr Volume Control Jack.

10. The crossover frequency can be set at any frequency
Between 32Hz and 320Hz.

11. (1) The HP frequency can be set at any frequency
Between 20Hz and 100Hz.

(2) Bass Boost control will provide at frequency

Being set between 20Hz ~ 100Hz

4 56

The JBL BP 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.

3. Mount the amplifier and securely tighten the mounting screws.

3

Power Amplifier

Power

Antenna

Antenna Input

Cassette/Receiver

Power Supply

Wires

Typical System Configuration

Cassette/CD Tuner

(Head Unit)

BPX1100.1

CD Player or Changer

Power

Antenna

Relay

Power Supply

Antenna Motor Ground

Remote Antenna

Fuse

Remote On/Off

Ignition
Switch

Red - Main +12V

Black - Power Ground

Line
Level
Input

Fuse

Black Power

Remote On/Off

60 Amp (Not Included)

Fuse

Power Ground

Main +12V

Amplifier

Power

Connection

Vehicle Battery

Chassis Ground

Speakers

4

Power Amplifier

BPX1100.1

Printed Circuit Board (Top View)

5

Power Amplifier

BPX1100.1

Printed Circuit Board (BOTTOM View)

6