Question about Rockford Fosgate P3001 Car Audio Amplifier

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Fosgate 3001 amp

Amp is getting 12.4 vdc when not powered on. when u power it up, the voltage drops to 6.4vdc. is this normal. My problem is that im getting power to the amp but there is no sound going to the subwoofers. could it be there is not enough voltage when it is powered on. any suggestions

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  • christoph792 May 02, 2009

    dual 600 watt amplifier. get's 12.56V until car turns on then drops to 1.2V and amp won't turn on. remote is sending 10V. when wires taken off amp they get 12.56V. Why would there be no power to the amp?

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Here's a few things I would check:

  1. Does the vehicle run ok? No issues starting or dimming of the headlights? It's possible your battery is the issue.
  2. If the battery is fine, check all of the power connections (including the ground lead of the amp) between the battery and the amp are tight and not corroded.
  3. What gauge of wire is used to connect power and ground to the amp? If it's less than 10 gauge, it may be too small.

Posted on Mar 13, 2008

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have you bridged both subs and wat gauge wire are you using.

these amps can only handle one bridged sub at 4ohms and this amp is recommended that u use 8gauge or higher. if your running to subs i normally reccomend using 4 gauge power wire as you get more rms power feed to the amp

you can get a power cap or anyother accersory cheap online at my suppliers.. caraudiosecurity << click to enter >> hope this helps and please rate me :)

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