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Amp not working
It sounds like you either blew a fuse, or you cooked your amp. The fuse on the P200.2 amp is a 30A fuse, and it sits right next to the power, ground, and remote wire connections on the end. Pull the fuse out and see if it's blown. You should also check any other fuses that you have in the car before the amp.
on Mar 04, 2010
Do you have the amp bridged first off? if you do unbridge it. Next,
1) Turn all the settings all the way down on the amp.
2) Turn your bass on the radio into the negatives (-2 or-3)
3) Turn the volume up to the point where your highs start to not sound good, then turn them down just enough to where they sound good again.
4) Turn your crossover to about half if your box is ported, or three Fiths if its sealed.
5) Raise your gain slowly untill either the volume doesn't get any higher or you hear the subs start to sound funny. Now turn it down just a hair.
6) Turn your crossover up a hair then down a hair and see what happens, if it gets a touch louder with out distortion then leave it. If it losses clarity then place it back to where it was.
7) Listen to a couple songs you know well and stand in front of your subs at volume to be sure theres no distortion.
You should be good at this point let me know if you need something else.
on Dec 05, 2007
Rockford Fosgate P2502
I would suggest that you check your grounding and if possible run an extra ground from the battery ground just to make sure. Then I would use an DC line voltage filter between the power supply and the AMPs. If this does not work. You may have an issue inside of the fosgate AMPs. To troublehoot these you will need a voltmeter (set to the AC setting), audio tone generator (multiple settings from 20Hz to 20 Khz), two dummy speaker loads (set to proper impedance and wattage), and an oscilloscope (to see if clipping is occuring). After you have these items, connect the dummy loads to the AMPs and then connect the ground wire to the AMPs, and connect the power supply to the Amplifiers. Put one of the oscilloscope leads across one of the dummy loads and the other oscilloscope lead across the other dummy load. at this point connect the Audio Frequency Generator and set it to 20Hz and increase it to 60Hz as you also increase volume at each frequency looking at the oscilloscope for any signs of clipping continue to increase as you get higher in frequency. You should see very little clipping. If clipping is seen the actual unit may have a voltage regulator problems. If the unit has voltage regulation problems, I would suggest that you take the unit to a repair shop for further investigation, I have repaired quite a few of these units and for the most part regulation on these items sometimes can go bad with very little warning.
Let me know if this solves your problem, or at least points you in the right direction.
on Sep 05, 2007
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