Protection Circuit - Crunch Groundpounder GPX500 .2 User Manual

PROTECTION CIRCUIT

The Operation-LED (POWER, fig. 2, 7) lits up, if the amplifier is in operation.
The protection LED (PROTECTION, fig. 2, 7) lits up, when the amplifier is overheated, or a short circuit
occurs resp. a too low impedance load is connected to the speaker outputs. If this events, the internal
built-in protection circuit shuts down the amplifier automatically. The amplifier should work again properly
after you have solved the problems.
FIGURES
(P. 28-30)
CONNECTIONS AND CONTROLLERS (FIG. 1)
(1) Highpass filter controller
(2) Selector FULL / LPF (Lowpass) / HPF (Highpass)
(3) Lowpass filter controller
(4) Audio signal outputs to run additional amplifiers
(5) Audio signal inputs for the rear channels
(6) Selector for the stage-to-stage enhancement of the treble level
(7) Selector for the stage-to-stage enhancement of the bass level
(8) Gain level controller
POWER SUPPLY AND TURN ON CONNECTION (FIG. 2)
(1) GND terminal for the ground
(2) REMOTE terminal for the turn on connection
(3) +12 V terminal for the positive-connection of the battery
(4) Vehicle's battery
(5) In-Line Fuse (not included in the scope of delivery)
(6) Turn on wire from the headunit or the electrical antenna
(7) Protection-LED and Power-LED
2-CHANNEL OPERATION STEREO (FIG. 3)
If you want to run the amplifier with the 2 line output channels from the headunit to drive 2 loudspeakers,
in stereo connect the following setup:
(1) To the headunit, line output left
(2) To the headunit, line output right
(3) Loudspeaker left
(4) Loudspeaker right
1-CHANNEL OPERATION MONO (FIG. 4)
If you want to run the amplifier with the 2 line output channels from the headunit to drive a subwoofer,
connect the following setup:
(1) To the headunit, line output rear left or subwoofer output
(2) To the headunit, line output rear right or subwoofer output
(3) Subwoofer
ENG
11