Channel Amplifier - Applications; One 2 Channel Amplifier In Mono/Subwoofer Mode - Crunch GP1000.2 Owner's Manual

One 2 Channel Amplifier in Mono/Subwoofer Mode

X-OVER SELECT
• In 1 Channel/Mono-Mode select the Lowpass-Position (LP), which eliminates the higher frequencies. The recommended
crossover frequency ranges between 60 - 100Hz, depending on the size and response of the Subwoofer. The Lowpass
adjustment can be done with the FREQ - ADJUST control.
INPUT LEVEL
• Turn the INPUT LEVEL control on the amplifier to 5V position.
• Turn the head unit volume control to about 80-90% of its full setting.
• Turn the INPUT LEVEL control clockwise until you hear some distortion.
• Then turn back the INPUT LEVEL control slightly until you can hear clean sound.
BASS BOOST
• The BASS BOOST - Control increases the bass level at 45 Hz max. +12dB.
Caution! Please use the Bass-Boost carefully. The additional boost may result in clipping or overload.
MODE SELECT
• The MODE SELECT - switch must be in "MONO" - position.
Connect cable from REMOTE CONTROL with the
input jack from the amplifier
REMOTE REMOTE
0dB 12dB
Connect RCA cable from
head-unit with RCA input
(INPUT).

2 Channel Amplifier - Applications

GP1000.2 / GP1500.2
Interconnect cable checklist:
• Connect the INPUT of the amplifier to the head unit line output with good quality RCA to
RCA cables.
• Connect the speakers with the terminal block (SPEAKER OUTPUT/ + BRIDGED - ) of the
amplifier.
•The minimum final speaker impedance must not be below 4 Ohms. Too low speaker loads
result in too high heat dissipation and may cause the amplifier run into protection.
• If you use more than one speaker (subwoofer), make sure that both are connected in
phase. Incorrect polarity of the speakers results in total loss of bass response.
Be careful not to connect speaker (-) to the ground or vehicle chassis.
Caution
Subwoofer 4 - 8 Ohms
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