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Accessories supplied, Caution – Crown Audio CMA-1 User Manual

Page 4

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Accessories Supplied:

The CMA-1 comes complete with:


60-amp fuse
Fuse Holder
Input cable harness
Remote on/off cable

Mounting: Mount the CMA-1 securely, say to the vehicle chassis or to a wooden panel. Allow
adequate airspace (at least 1”) and sufficient airflow around the heat fins for cooling. The CMA-1
may be mounted horizontally or vertically in the trunk or behind rear car seats. DO NOT place the
CMA-1 in the engine compartment or in an area exposed to a harsh environment. Do not mount near
the vehicle heater.

Dimensions of the CMA-1 are 16”L x 14-1/2”W x 1-5/8”H. Mounting-hole locations are shown in
Figure 2. The amplifier can be used as a hole template.



**Caution**

It is very important to install a 60-amp fuse in the +12VDC power

wire at the battery. This fuse prevents fires caused by wiring

shorts to the vehicle chassis due to improper installation or

unforeseen accidents.

As in any professional installation, fusing the speaker lines is

highly recommended to protect the speakers. Refer to Figure 1 to

determine proper speaker-fuse values.

If speaker cables must be spliced to shorten or lengthen them, the

splices must be mechanically and electrically sound. Simply

twisting wires together and wrapping with electrical tape is not

adequate. We strongly recommend insulated crimped terminals, wire

nuts wrapped with electrical tape, or solder connections with wire

nuts wrapped with electrical tape.

Avoid pinching or piercing the speaker cable during installation.

Route speaker cables separate from amplifier- input cables to

prevent oscillations. Observe proper polarity of plus and minus

wires when adding wire.

Due to extreme output power, the CMA-1 could, when abused, damage

certain models of loudspeakers. Use speakers that can handle the

amplifier power output. After installation, turn up the volume

slowly and avoid overdriving the speakers.