Popping sound


There’s an intermittent popping (electronic) sound coming from my left speaker only. It occurs at intervals of maybe 20 minutes or longer. I can live with it but I think it’s odd that it only emanates from one channel.

 Any ideas?

rvpiano

Showing 2 responses by oddiofyl

It is most likely a tube, but ut can also be a bad capacitor.   But before you take the covers off look around the house to see if anything like a plug in air freshener or anything that cycles on and off like that.  Pull them out while troubleshooting this type of problem.  

If you suspect the pre, swap the right and left channel tubes.  I believe with earlier cj preamps the channels each had their own tubes, not sharing a twin triode for both channels like more recent ones. 

Good point about speaker wirr interference .   I had a ethernet cable running alongside a speaker wire and it caused a weird intermittent crackle noise.