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4-Channel-Mode: 2 Frontspeakers / Stereo & 2 Rearspeakers / Stereo
Interconnect Cable Checklist
• Connect the head unit line outputs with good quality RCA to RCA cables with the LINE INPUT SECTION
for CH1/2 & CH3/4 of the amplifier.
• Connect the speakers with the terminal blocks (SPEAKER OUTPUT + CH1 -, + CH2 -,
+ CH3 - and + CH4 -) of the amplifier.
• The minimum final speaker impedance must not be below 2 Ohms per channel. Too low speaker
loads results in too high heat dissipation and may cause the amplifier runs into protection-mode.
• Please observe speaker channel and polarity as printed by the speaker terminal block.
Incorrect phasing of the speakers results in total loss of bass response.
FILTER - Switches & Controls Channel 1/2 & Channel 3/4
If larger than Ø 20 cm speakers are used, the FILTER selector should be set on "OFF" (Full-range).
For all smaller speakers (Ø 8.7cm - Ø 16cm) the FILTER selector should be set on "HP", which eliminates the lowest frequencies
and protects the speakers from damages. Set the crossover-frequency between 60Hz - 150Hz, depending on the size of the installed
speakers. The Highpass adjustment can be done with the HP control. The crossover-frequency is continously
variable from 15Hz - 1KHz.
TWIN SUB - Switch
• This switch should be set on "OFF" - position.
BASS REMOTE - Switch
• This switch should be set on "OFF" - position.
INPUT MODE - Switch
• This switch should be set on "4CH" - position, when you use two RCA to RCA cables. This switch should be set on "2CH" - position, when
you use one RCA to RCA cable. Use the inputs CH3 & CH4 when you only use one RCA to RCA cable for connection with the head unit.
INPUT GAIN - Control Channel 1/2 & Channel 3/4
• Turn the INPUT GAIN - controls on the amplifier to "MIN." - position.
• Turn the head unit volume control to about 80-90% of its full setting.
• Turn the INPUT GAIN - controls clockwise until you hear some distortion.
• Then turn back the INPUT GAIN - controls slightly until you can hear clean sound.
BASS BOOST - Control Channel 3/4
• Turn the BASS BOOST control into “0dB” - position.
REMOTE CONTROL - Channel 3/4
Caution
Please avoid to connect speaker (-) to the ground or vehicle chassis.
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4-CHANNEL AMPLIFIER - SPEAKER & RCA-CONNECTION
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