Clarion APX290M installation manual Product Specs, Thd

APX280M APX490M manual.qxd 2/6/2008 11:38 AM Page 18

English

APX290M/APX490M Power System Amplifier

Pro blem

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

MODEL

Frequency Response Signal Noise Ratio

THD

Input Sensitivity Low Level Input Sensitivity Speaker Level Max. Power Output Cont. Power Output

2-Ohm Stereo Output Bridged Power Dimensions Current Consumption

at output @ max power

APX490M 20Hz ~ 20kHz >97db

.10% all channels driven

200mV ~ 6.0V

500mV ~ 13V

720W (180 x4)

360W (90W x4) @.10% THD

165W x 4 @ .10% THD

330W x 2 @ .10% THD

2-1/8" H x 8-3/4" W x 16-1/8" L

58A @ 720 Watts

APX290M 20Hz ~ 20kHz >95db

.10% all channels driven

200mV ~ 6.0V

500mV ~ 13V

360W (180 x2)

180W (90W x2) @.10% THD

150W x 2 @ .10% THD

250W x 1 @ .10% THD

2-1/4" H x 9-1/8" W x 10-1/2" L

29A @ 382 Watts

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