Clarion APX400 manual Product Specs, Problem, Solution

Problem

Audio lacks punch.

Solution

Speakers wired incorrectly, which causes cancellation of bass frequencies. Check polarity of wires from amplifier to each speaker as defined by the system design.

Problem

Amplifier fuse keeps blowing.

Solution

Incorrect wiring or short circuit. Review Installation and check all wiring connections.

Problem

Whining or ticking noise in the audio with engine on.

Solution

Amplifier is picking up alternator noise or radiated noise. Turn down input gain; move audio cables away from power wires. Check power and ground connections on amplifier; install an in-line noise filter on source unit’s power wire; check alternator and/or voltage regulator; test for weak battery or add water to battery

PRODUCT SPECS

	APX400.4M
Frequency Response	20Hz ~ 20kHz
Signal Noise Ratio	>95db
THD	.05% all channels driven
Input Sensitivity Low Level	250mV ~ 2.5V
Input Sensitivity Speaker Level	500mV ~ 5V
Max. Power Output	380W (190 x 2)
Cont. Power Output	200W (50W x4) @.08% THD
2-Ohm Stereo Output	90 x 4 @ .8% THD
Bridged Power	190 x 2 @ .8% THD
Dimensions	2 1/8”H x 8 1/4”W x 12” L
Current Consumption @ Max Power Output	46A @ 380 Watts
NOTES

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