Question about AudioBahn A2200HCT Car Audio Amplifier

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No noise A2200HCT

I have a audiobhan A2200HCT and one day i got in my car and turned the key over with out starting it and the volume was low and as soon as the bass hit the amp popped 4 times the lights work and the cooling fans and the green lights on there is just no sound from the amp ive taken it apart looked the board over nothing seems to be burt up nothing smells funny i dont know what it is i also hooked a different amp up and it worked fine so i know it not the rca's some one please HELP!!!

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  • blockbeata09 Nov 29, 2008

    i looked the amp over agian and found the things clamped to the heatsink are cracked 4 of them are is their anywhere that sells them i think that might be it

  • blockbeata09 Nov 30, 2008

    it loos like it says irfz44n and their is another # 606p

  • blockbeata09 Nov 30, 2008

    thanks for all your help im about to order 16 off them and replace them all. even if the transistors are cracked it will still allow the amp to power up?do you think that sounds right

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  • Master
  • 631 Answers

To determine what failed, you would have to open the amp while it's powered up and measure the voltage at several points. If you're not comfortable with doing this, you should pay to have it repaired. If you want to try to repair it yourself, read through the following page.

Basic Amplifier Repair

You'll need a digital multimeter.

Let me know if you want to try to repair it yourself.

Posted on Nov 25, 2008

  • Perry Babin Nov 29, 2008

    What are the numbers on the transistors?

  • Perry Babin Nov 30, 2008

    IRFZ44NPBF-ND



    You MUST replace the 8 on the side that had the 4 cracked FETs. You should replace the 8 on the other side also.



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