Protection Circuit - Crunch GTi750 Mode D'emploi

PROTECTION CIRCUIT

The POWER-LED (fig. 1,1) lits up, if the amplifier is in operation.
The PROTECT-LED (fig. 1, 1) 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) Power-LED / Protect-LED
(2) Connector for the included bass level remote controller
(3) Bass Boost controller
(4) Lowpass filter controller
(5) Selector LP (Lowpass) / FULL / HP (Highpass)
(6) Subsonic / highpass filter controller
(7) Gain level controller
(8) Audio signal outputs to run additional amplifiers
(9) Audio signal inputs
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) Fuses
1-CHANNEL OPERATION MONO (FIG. 3)
If you want to run the amplifier with the 2 line output channels from the headunit to drive one or two
subwoofers, 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) Bass level remote controller
(4) Operation with 1 subwoofer
(5) Operation with 2 subwoofers
2-CHANNEL OPERATION STEREO (FIG. 4)
If you want to run the amplifier with another amplifier (same model) to drive 2 loudspeakers in stereo,
connect the following setup:
(1) Amplifier 1 via Y-Connector*, to the headunit, line output left
(2) Amplifier 2 via Y-Connector*, to the headunit, line output right
(3) Loudspeaker left
(4) Loudspeaker right
* both jacks under INPUT L/R must be connected.
ENG
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