Crunch Blackmaxx MXB-280 Specifications download pdf (Page 20)

Speakers (Right) 2 - 8 Ohms

Speakers (Left) 2 - 8 Ohms

Connect RCA cable from

head-unit with RCA input

(LINE LEVEL INPUT).

L R

Green: Left Speaker -

White: Left Speaker +

Black: Ground

Brown: Right Speaker +

Gray: Right Speaker -

HI INPUT

2 Channel Amplifier - Applications

MXB-280/MXB-2175/MXB-2300

One 2 Channel Amplifier in Stereo Mode

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/ + L - and + R -) 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.

FILTER SELECT

• If larger than 20 cm speakers are used, the FLAT position is recommended.

• For all smaller speakers (Ø8.7cm - Ø16cm) the Highpass-Position (HIGH PASS) 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 control.

• In this configuration example the LOW 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

• Turn the BASS BOOST control into “0dB” - position.

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Crunch Blackmaxx MXB-280 Specifications Page 20