Channel Amplifier - Applications; 4-Channel-Mode Front/Rear Speakers - ESX SX-4120 Bedienungsanleitung

4-Channel Front-/Rear Speakers
X-OVER SELECT (CH1/2 & CH3/4)
• If larger than 20 cm speakers are used, the FULL position is recommended.
• For all smaller speakers (Ø8.7cm - Ø16cm) the Highpass-Position (HP) is recommended, which eliminates the lowest
frequencies and protects the speakers from damage. Set the crossover-frequency between 60Hz - 150Hz, depending of
the size of the installed speakers. The Highpass adjustment can be done with the HIGH PASS - ADJUST control.
INPUT LEVEL (CH1/2 & CH3/4)
• Turn the INPUT LEVEL controls on the amplifier to 4V position.
• Turn the head unit volume control to about 80-90% of its full setting.
• Turn the INPUT LEVEL controls clockwise until you hear some distortion.
• Then turn back the INPUT LEVEL controls slightly until you can hear clean sound.
BASS BOOST (CH1/2 & CH3/4)
• Turn the BASS BOOST control into "0dB" - position.
MODE SELECT
• The TWIN SUB - switch from CH1/CH2 must be in "OFF" - position and the MODE SELECT - switch from the
CH3/CH4 must be in "4CH" - position. When you only use one RCA to RCA cable the INPUT MODE SELECT switch
should be set on 2CH - position. The RCA to RCA cable must be connected wih the input of CH1&2.
Connect RCA outputs
from head-unit with RCA
inputs (INPUT CH1/2
and CH3/4).
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4 Channel Amplifier - Applications

SX-480 / SX-4120
Interconnect cable checklist:
• Connect the head unit line outputs with good quality RCA to RCA cables to the INPUT
CH1&2 / CH3&4 of the amplifier.
• Connect the Front-/Rear 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 Ohm per channel. Too low
speaker loads result in too high heat dissipation and may cause the amplifier run into
protection.
• 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.
Be careful not to connect speaker (-) to the ground or vehicle chassis.
Caution
Rear-Speakers 2 - 8 Ohms
Front-Speakers 2 - 8 Ohms