Operation Manual

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