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APX480M Power System Amplifier
12
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.
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 @ Max
Power Output
20Hz ~ 20kHz
>95db
.05% all channels driven
250mV ~ 2.5V
500mV ~ 5V
640W (160 x4)
320W (80W x4) @.05% THD
115W x 4 @ .5% THD
230W x 2 @ .5% THD
2 1/8” H x 8 1/4” W x 12” L
46A @ 640 Watts
PRODUCT SPECS
APX480M manual.qxd 3/12/2004 1:07 PM Page 14