A1201GTi (serv.man3) - JBL Car Audio Service Manual (repair manual). Page 4

Controls and Connections

1 Channel Automotive Amplifier

3

A1201GTI

Controls and Connections

Mounting the Amplifier

1. It allows left and right input channels to be 

    connected to be amplifier using RCA plugs.

 

    

2. Speaker Output Connector - Connect speaker

    wiring to these connectors. See wiring instruc-

    tions on page 4 for more information.

3. Fuse - Three 40 Amp ATC type Fuses.

The JBL GTI 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.

4. Power Connection for 12V+, GND and REM 

    connections for power wires. See wiring instruc-

    tions on page 4 for more information.

5. Input-Level Control - Adjusts input sensitivity

    for pre-amp level and speaker level inputs.

6. The electronic crossover is a 24dB/oct.

    Low pass filter which can be Set at any frequency 

    between 30Hz and 320Hz.

8. External capacitor (Optional)

R

R

L

L

FRONT INPUTS

REAR INPUTS

INPUT
LEVEL

4V      55mV

30Hz     320Hz

0dB         +6dB

 LPF
FREQ

 BASS
BOOST

.

.

.

.

.

.

A1201gti

1

2

3

4

8

5

6

7

REMOTE

SPEAKER OUTPUTS

FUSE 40Ax3

+BATT

+BATT

REM

POWER

CAPTAP

GND

GND

-             +             -              +

7. The bass boost control will provide up to 6dB of boost
    at 50Hz.