Clarion APX2180, DPX1800, DPX11500, DPX2250, APX4360 owner manual Cables, Grounding the amplifier

English

Cables

•Whenever possible, route power wire and signal wire on opposite sides of the vehicle. This prevents the signal cables from picking up electrically radiated noise.

•Protect all wire from damage. Where a power wire passes through the fire wall or near exposed metal edges, protect the wire with a rubber or plastic grommet. Use wire loom where possible for further protection.

•Extra cable can cause signal loss and act as an antenna for noise. Use only high- quality RCA cables that are no longer than necessary to make a direct connection with the source unit and amplifiers.

•Make sure each connection is clean and secure. Insulate final connections with electrical tape or shrink tubing.

CAUTION

Improper connections may result in
unreliable operation and damage the
amplifier or the vehicle.
	External fuse rating table
Grounding the amplifier
	Model	Fuse rating
• A good chassis ground connection is critical
	APX2180	30 Amp
to minimize resistance and avoid noise	APX4360	50 Amp
problems.
	DPX2250	50 Amp
Use the shortest wire possible. Clean off any	DPX1800	90 Amp
	DPX11500*	200 Amp
paint, primer or sound deading prior to	*This amplifier has no amplifier-
making this connection.
	mounted fuses. Always use a 200
To minimize resistance and avoid noise	Amp fuse installed at the battery.
problems, securely connect the ground wire

to the car chassis and the source unit ground. Using existing bolts is not recom- mended.

•The last connection you make should be the ground wire at the amplifier. As the power supply capacitors in the amplifier are not charged, a spark may be pro- duced when you make this connection.

Use a test light with an incandescent bulb between the ground terminal and the power wire to charge these capacitors if this is a concern. The ground wire is the most important connection to the amplifier. Make sure it is both electrically and mechanically sound.

12 APX/DPX Amplifiers