I just had my pre-amplifier repaired for my home audio system.?

Question

I just had my pre-amplifier repaired for my home audio system. It seems to work, but now I hear static coming from the speakers. Does the amplifier still need repairs or do I need to change the connectors of the wires?

Answer 1

You can always bypass the preamp to locate the noise source.

1. Connect the source to the amplifier without the preamp. If the noise disappeared, then you know the preamp needs to go to hospital again and make sure they don't charge you this time.

2. If you hear the noise even without preamp, it's likely the source or the amplifier is generating the noise. You can verify the amp by connecting it to different source, if the other source exhibit the same noise, then the amp is the culprit.

Hope this helps

Answer 2

I am only guessing, but if the noise is only coming from one or two sources, I'd try changing the connectors first. If that doesn't do it, or worse, it happens regardless of your source, that pre-amp may have developed another problem.  If the repair bill becomes unreasonable, you may have to "bite the bullet" and buy another pre-amp.