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Diamond Audio amplifier 1200W

I have a problem with my amp. I am getting no sound to subwoofer. The red protection light powers on and not the green as is supposed to. This is after I realized that the pos and /neg speaker wires were touching a little. and that cause the sound to mute at times.Fuses look good.Thanks!

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Re: Diamond Audio amplifier 1200W

If the speaker wires touched and the protection circuit didn't engage quickly enough, the output transistors may have failed. This is the most common cause for an amplifier to go into protect mode.

If you disconnect the speaker wires from the amp and the B+ and remote voltage are above ~11 volts (place black meter lead on ground terminal of the amp when checking the voltage), and the protect light still comes on, the amplifier will need to be repaired.

Posted on Nov 25, 2007

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