Amp powers up and plays audio but very distorted audio and when a load is put across the speaker terminals as far as a dummy load or a test speaker the amp will start drawing excessive current and the test speaker will start screeching .
Any ideas on what to check ?
The amp is producing both + - 15 volts on the opamps and +- 40 volts of rail at idle
Any ideas on what to check ?
The amp is producing both + - 15 volts on the opamps and +- 40 volts of rail at idle
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Not sure what you mean by are both half’s of the amp distorted ? This is a mono block amp .
And the signal is distorted at the large caps
And the signal is distorted at the large caps
It's a preamp problem. The caps are before the power amp stage.
Does it ever clean up if you try all combinations of switch options?
Does it ever clean up if you try all combinations of switch options?