Clarion manual Product Specs, APX280M Power System Amplifier, Problem, Solution

APX280M manual.qxd 3/12/2004 12:55 PM Page 10

APX280M Power System Amplifier

Problem

Distorted audio.

Solution

Gain is not set properly, or damaged speaker cones. Review Setting Gain; inspect each speaker cone for signs of damage (i.e. frozen cone, burning smell, etc.)

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

Frequency Response	20Hz ~ 20kHz
Signal Noise Ratio	>100db
THD	.05% all channels driven
Input Sensitivity Low Level	250mV ~ 2.5 V
Input Sensitivity Speaker Level	500mV ~ 5V
Max. Power Output	320W (160Wx 2)
Cont. Power Output	160W (80w x 2) @ .08% THD
2-Ohm Stereo Output	125W x 2 @ .05% THD
Bridged Power	300W x 1 @ .05% THD
Dimensions	2-1/8"H x 8-1/4"W x 9" L
Current Consumption at output
@ max power	28A @ 382 Watts

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