Question about Directed D800 Car Audio Amplifier

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My d800 directed amp is in my car & isn't working. i checked the 2 fuses on the side of the amp & they aren't blown from what i can see. the amp is also connected to my kicker box. when i turn the battery on in my car my amp & kicker box usually come on & the kicker box & amp work but it doesn't. & i looked on the other side of the amp & noticed that the power light doesn't even come on when i turn the battery on. can you assist me or give me an idea of what the problem is.?

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Posted on Jan 02, 2017

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SOURCE: the fuse in the red wire that connects to the battery blows

there must be a short. hook the power amp up to a power supply or another battery,fused of course...if it works,it is ok.
then the problem is in the car
high power amplifiers should be run off a secondary battery.
a 480 watt amplifier will pull 40 amps of current. enough to run 8 headlights.the real problem is surge currents,which the spikes can damage the alternator/regulator.these can top 100 amps.
some high end installs use a second alternator and battery.

Posted on May 13, 2009


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