Question about Performance Teknique ICBM-772 Car Audio Amplifier

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Sub amp not working anymore

All of a sudden my subs started working and i did not get to check it out until the next morning, i replaced both fuses in the engine but the amp still did not work, as i was looking at it it turned on for 15 seconds then shut off i started checking all connections when inoticed the ground terminal was partially melted and the end of the ground wire was now black, the amp diagnostic light is on and goes of when i disconnect the negative input.

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Re: sub amp not working anymore

Sounds like a typical case of poor conections causing the amp to fail... take the cover off of the amp. Inspect where the terminal blocks meet the circuit board. SOmetimes you can repair it sometimes its just too far fried..

Posted on Sep 18, 2007

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My power acoustik bamf 2200 amp keeps blowing its fuses, why?

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Could try switching right and left subs. If the problem moves to the other side pull the wiring and redo.
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although an odd thing to have happen it does sound like you blew your amp. check the fuses in it to see if you can avoid having to replace the amp and instead replace a few dollar fuse also check the fuses where you had this pluged in. hope this helps a little. if you give the amp type i may be able to help a little more

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Amp doesn't come on

Hello rheabarb,

You did not say whether or not you checked the wiring going to your subs. Many times, a shorted or grounded speaker wire will cause an amp to fail. And if the amp powers up OK with the subs disconnected, I'd suspect one or more of the wires.

Hope this helps.

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1 Answer


I have an Infinity amp as well, and I was having the same issue for a time. The amp is protecting itself from some sort of overload. It could be the Ohms load on the sub, but I would guess not. Make sure your low pass filter is set to LP and not HP or Flat. Then check the RMS on your subs and match that to the Amp RMS. Once I did all that I found that everything worked fine, for a time. It started doing this again, and I checked the fuse and it was blown badly. It seems that the fuse setup on some of these Infinity amps is not as good as one would hope, because the charge was bridging the gap and frying out my fuses. It was like a spark would jump from one side of the fuse to the other without travelling the fuse itself, and this was causing my protect issues. I pulled the fuse, got a new one of the same rating, but I placed the fuse in with a little piece of rubber in between the 2 contacts, and then connected to the fuse block. I have not had problems since.

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Phoenix Gold Xenon 1200 mono not pushing subs and making noise.

This sounds like a problem with the head unit output to the sub amp. Are you using a Pioneer head unit? If so, you may have a problem with some surface mounted fuses inside the radio on the main board. Certain Pioneer head units have a common problem with these fuses blowing. They are fuses for the ground on the RCA outputs.

Let me know if this is the case, and if it is I can give you the part number of these fuses and tell you where they are located, but you would need good soldering skills to replace them. Also let me know what model number your head unit is.



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It sounds like your amp chip has gone bad, here is some thing you can try turn on your unit then start tapping on top of with your finger not hard see if the any of the pops matches your finger taps some times when the chip starts to go out it well act like that.

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P3001 amp may be fried

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