Question about Rockford Fosgate T10001BD- Car Audio 500watts Mono Power Amplifier Car Audio Amplifier

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Rockford T10001bd: Capacitor buzzing

The capacitor in the amplifier is giving a high pitched buzzing sqealing sound when power is applied to the amplifier. its the second smaller capacitors from the biggest ones, they are the ones bunched together, there are about 4 but only one is doing it, it also has a bump on the top like it is about to pop. the amplifier doesn't turn on, it only sqeals. does anyone have any ideas.... it would really help.. thanks

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  • SPLaudioGUY Dec 05, 2007

    No other caps show any signs of damage, but I will try a 20 Amp fuse. thanks for the advice

  • SPLaudioGUY Jan 07, 2008

    I have fixed the problem, It turns out that there where 2 bad MOSFETs that shorted out in the ampification stage, these 2 shorted MOSFETs where causing a short to the power supply stage which caused the Power rectification diodes to feedback in to the capacitors causing it to sqeal. but its all fixed now



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If the top is split open, it has vented electrolyte. This is most commonly caused by more serious problems in an amp. Do the other adjacent caps show any signs of damage?

Is it blowing fuses? Connect a 20 amp fuse in-line with the B+ line of the amp. If it blows the fuse, the amp is drawing excessive current and most likely has more serious damage than the single vented cap.

Posted on Dec 04, 2007

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My amp has this same problem... Did you order the parts yourself and replace them or send it in for a repair?

Posted on Sep 04, 2009


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