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Macrom M2A.490 User Manual

Macrom M2A.490
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Owner’s Manual
M2A.490
www.macrom.ch
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Macrom M2A.490 Specifications

General IconGeneral
Channels4
Amplifier ClassAB
Frequency Response10Hz - 30kHz
THD<0.05%
Signal-to-Noise Ratio>90dB
Input Sensitivity0.2V - 5V
RMS Power @ 4 Ohms90W x 4
RMS Power @ 2 Ohms4 x 120W
RMS Power Bridged @ 4 Ohms2 x 240W
Bass Boost0 to +12dB
Fuse Rating2 x 30A

Summary

Input Setting CH1/CH2

Low Level Input

Connect the output Audio coming from the car radio to the Low level input of the amplifier.

High Level Input

Connect the Loudspeakers output coming from the car radio to the High level input of the amplifier.

Gain Control

Adjust the gain control, according to the Audio level output.

Input Setting CH3/CH4

Low Level Input

Connect the output Audio coming from the car radio to the Low level input of the amplifier.

High Level Input

Connect the Loudspeakers output coming from the car radio to the High level input of the amplifier.

Gain Control

Adjust the gain control, according to the Audio level output.

Crossover Setting CH1/CH2

Flat Switch

Select 'FLAT' for a complete frequency range.

High Pass Cutting Adjustment

The cut frequency is selectable between 30 to 600 Hz.

Crossover Setting CH3/CH4

Switch Settings

Select FLAT, LOW, HIGH, or LOW and High for frequency response.

Low & High Pass Cutting Adjustment

The cut frequency is selectable between 30 to 600 Hz.

CH1/CH2 Speakers Connection

Speaker Impedance and Connection

Minimal acceptable impedance is 2 ohm for CH1/CH2 speaker connections.

CH3/CH4 Speakers Connection

Speaker Impedance and Connection

Minimal acceptable impedance is 2 ohm for CH3/CH4 speaker connections.

Power Connection

Power and Grounding

Connect the Positive (+12V) to the Battery and Ground to the car chassis.