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Turns off on hard hitting songs and isnt hotter than normal use then comes back on in a minute

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Re: Turns off on hard hitting songs and isnt hotter than...

Ur running it at an unstable resistance load. change ur speaker wire setup.

Posted on Mar 24, 2008

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Re: Turns off on hard hitting songs and isnt hotter than...

Sounds like it is clipping, turn the gain down as a temporary fix.
are you running a capacitor inline? what is the model of the amplifier? what gauge wire do you have hooked up to the power and ground? how long is the wire for the power and what do you have it connected to (fuse block, battery, distribution block)?

Posted on Nov 16, 2007

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I have a Rockford fosgate P4004 with two 12'

I think you are right about the "fried" part. It would have to be opened up and repaired to be able to use it again

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Sounds like your amp isnt powerful enough to power your subs, whats the wattage of your amp and both subs? Its shutting off when hard bass hits to protect itself from blowing, a good feature as a blown amp means a new one. an amp should always be more powerful than the speakers / subs you are connecting to it. for 2 500w subs your looking at a 1200w amp minimum.

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check for any loose connections at the fuse block or a loose fuse
using an ohm meter would help
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This is due to a few things, Your amp, the tempurature in the car, the size gauge of wire, and the alternator, When your hittin hard bass and you notice over time it kinda dies out, it means that your sub is losing power cause of the lack of power your battery and alternator produce, If the amp is fairly big then it needs alot of power to keep it at peak performance, I would recommend getting an capacitor that is well suited for your amp, this will give you the constant power you need and the bass will always stay bumpin hard for a significant amount of time, Also the tempurature greatly affects the performance of amps cause the hotter it gets the less power it delivers then possible shut off where then it will cool off for a brief moment then return for only a litle while if still bumping

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On then off


May 11, 2008 | Car Amplifiers

1 Answer


try turning down the volume level on the power amp.
And see if that works.

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