Help - static noise in speakers

yogiboy said:   04-18-2025 at 03:51pm

Swap the left and right tubes and see if the static moves to the other speaker! If it does you have a bad tube!

Did you try swapping the left and right channel tubes?

I'd not continue to use the amp, continuing static after swapping everything means this internal issue. You may end up in catastrophic failure if situation left unresolved, I know this from direct experience.

I did try moving the tubes to the other side, and even tried 2 new, extra tubes that I had on hand - no improvement.

So I guess I will wait for McIntosh to respond (even thought it took them weeks to respond the last time I had an issue)

The static noise could be caused by a cold solder joint/connection. Or possibly a poor internal wiring connector connection.

I did a quick look through the owner manual of the amp.... That amp is basically controlled by a computer.

May not do a thing, but did you try unplugging the amp from the wall outlet for a few minutes then plug it back into the wall outlet? 

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I tried unplugging the amp for about 5 minutes but that didn't fix it.  

I also just plugged in headphones and I don't hear the static. So does that mean it may not be the tubes, but maybe the speaker out connection?

Thanks for all the ideas everyone.