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Crunch GTO1200 Manual

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11
ENG
The LED (POWER, fig. 2, 7) lits up, if the amplifier is in operation.
The LED (PROTECT, 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 happens, the internal built-in
protection circuit shuts down the amplifier automatically. The amplifier should work again properly after
you have solved the problems.
PROTECTION CIRCUIT
The controller (PHASE, Fig. 1, 4) allows to adjust the phase between 0° and 180° to match the run
time of the output signal with the vehicle’s interior acoustic.
VARIABLE PHASE CONTROLLER
By using the controller (BASS BOOST, Fig.1, 5) you are able to increase the bass level. The range is
between 0 and 12dB.
Note: Use the bass boost wisely. A too high bass boost could permanently damage the speakers.
VARIABLE BASS BOOST
POWER SUPPLY AND TURN ON CONNECTION (FIG. 2)
(1) +12 V terminal for the positive-connection of the battery
(2) REM terminal for the turn on connection
(3) GND terminal for the ground
(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
1-CHANNEL MONO OPERATION (FIG. 3) WITH 1 SUBWOOFER
If you want to run the amplifier with the 2 line output channels from the headunit to drive 1 subwoofer,
connect the following setup:
(1) RCA audio signal input from the headunit, line output left or SUB OUT
(2) RCA audio signal input from the headunit, line output right or SUB OUT
(3) Stereo high level input for loudspeaker outputs from the headunit
(4) Remote control to adjust the bass level e.g. from the driver’s seat
(5) Subwoofer (1-8 Ohms)
NOTE: (1 & 2) must not be operated simultaneously with (3).
FIGURES (P. 28-29)
CONNECTIONS AND CONTROLLERS (FIG. 1)
(1) RCA audio signal inputs from the headunit
(2) High level signal input for loudspeaker outputs from the headunit.
(3) Gain level controller
(4) Phase controller
(5) Bass boost controller
(6) Remote jack for the included bass remote control
(7) Subsonic controller
(8) Lowpass filter controller
… 11 …


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