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2 Channel Amplifier - Applications
MXB-280/MXB-2175/MXB-2300
L R
Connect RCA cable from
head-unit with RCA input
(LINE LEVEL INPUT).
Subwoofer 4 - 8 Ohms
One 2 Channel Amplifier in Mono/Subwoofer Mode
FILTER SELECT
In 1 Channel/Mono-Mode select the Lowpass-Position (LOW PASS), 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 LOW PASS control.
• In this configuration example the HIGH PASS control is not used.
INPUT LEVEL
• Turn the INPUT LEVEL control on the amplifier to 4V 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.
Interconnect cable checklist:
• Connect the LINE LEVEL INPUT of the amplifier to the head unit line output with good
quality RCA to RCA cables.
• Connect the speakers with the terminal block (SPEAKERS/ + BRIDGED -) 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.
Caution
Be careful not to connect speaker (-) to the ground or vehicle chassis.
Green: Left Speaker -
White: Left Speaker +
Black: Ground
Brown: Right Speaker +
Gray: Right Speaker -
HI INPUT
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