Preamp/interconnects cause amp problems?


My power amp, which sat, untouched for 3 years, always on and sounding great had a short in the power supply (cap gone bad?).

I sent it back to be fixed and and hours after getting back had the same issue. Manufacturer replaced boards and related pieces and is sending back but said they found nothing that they think would cause the issue.

so my concern is it’s something here causing it. Even though the manufacturer put the amp on the burn in rack for a week I’m worried it will have this issue again.

is it possible my preamp or interconnects could cause this? I have a loaner amp in place now for a few months and have had zero issues with it (same everything and save outlet)
but it’s a different (lesser) brand.
gochurchgo

Showing 2 responses by fiesta75

What model amp is this? Was everything OFF, not standby, that is connected to the amp when popping started? When you turn the amp off and then on again, has the preamp been on the whole time?
Sounds like for sure the power amp. The best way to troubleshoot problems like this is with freeze spray. Your tech should be aware of this technique. I have found failing pre-driver or driver transistors were the cause in some amps.