Question about Rockford Fosgate Punch P5002 Car Audio Amplifier

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Amp arc i would love somebody's help with the trouble i'm having with my punch 5002 amplifier. when i hook it up it gets power but won't get any sound. wait it gets better. i checked all the connections and wiring, which is all good. i then pulled the speaker wire out of the sub. while removing them i got very brief sound. that prpted me to check the sub connections and the speaker connections on the amp. as far as i can tell, there is nothing wrong there either. if i try to hook up the ground speaker wire while the amp has power it arcs. why is it doing this!!!!! tell me!!! please!!! thanks, ruff

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  • j doggy dawg Aug 29, 2007

    whats up guys? i would really appreciate some help here. do you think there is something wrong with the speaker terminals, or could it be the amp ground?

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What you need to do is first ground your amplifier securely then make sure all connections are fastened. don't remove the speaker connection and listen for sound. If there is no sound power down the unit, and send it to a repair shop because it sound like you may have damaged some components in the unit. But in order to come to this point you have to make sure you ground the unit properly and then make sure all of your connections are secure. Contact me once this is done and you are ready to do some tests.

Posted on Sep 03, 2007

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I just bought a punch 500 a2 amp. i hook up my ground, then try to hook up the power cable and it sparks. my punch 250 was hooked up minutes prior to this so i know my wiring is good. what the heck is the...


The spark could be from the capacitors in the amplifier charging. Make sure the main fuse from your battery is still good and also check all the fuses on the amplifier. Verify all the wiring is correct and make sure none of the wires from inside the positive cable are poking out and touching the vehicle or amplifier chassis. If you have a 1k ohm resistor, you can put it in series with the amplifier power line to slowly charge the capacitors. You can do that by following the directions from the link below. After doing all that, remove the 1k resistor, hook it all up and try it again. If it still doesn't work, make sure your remote wire coming from the head unit has a voltage on it when the head unit is on. You can get a cheap volt meter from a hardware store or wal-mart.

http://www.ehow.com/how_7203337_charge-capacitor-car-stereo-system.html

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1 Answer

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1 Answer

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1 Answer

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there is nothing wrong with the Rockford amp it just wont pound out the bass as hard but the good news is you will never blow the subs with it
when buying amps or subs make sure to look at rms rating that is the true power they actually have ie. (sub box says 1200 watt you think powerful but if you divide it in 1/2 you actually get 600 watts rms) don't get me wrong that's a nice rating. for a sub but you will want to match that number with the amps rms rating or lower. The RMS is what makes the car pound the higher the RMS the better
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1 Answer

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Yeah my guess without seeing it is that you did fry your amp. You really need to hook up two fuses inline on your power feed; one no farther than 18" from you battery and one inline at you amp.

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1 Answer

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