I just purchased a Traynor YCV40WR after returning a Fender Blues Jr. I had the same issue with both of these amps. When playing notes at higher volume with the gain, I am getting a vibration or buzz sound. This sound is non electrical. I have also had this issue with my Ultimate Chorus solid state amp as well. I have tried different guitars and its the same problem. I have no idea what the deal is.

Another issue I am having is with my Dan-Echo pedal. When I plug into it, it sounds real quiet. I put in a new battery but it didn't change anything.

I also am having issues with my volume pedal in the effects loop. I placed it at the end of the chain but it wouldn't work. It worked plugged directly into the input and it worked fine.

Any help would be greatly appreciated.

Thanks.

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it could be a duff cable or one of your pedals , espesh if it's happening with different amps and guitars ,or your eardrums start to vibrate with the high notes cheers
Alan

I'd try playin' clean thru amps, then add one pedal at a time, and see if you can find problem that way. also check your cables. good luck

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2012 American Vintage Telecaster 1958
09 Fender american deluxe strat.
97 Gibson les paul special P90's double-cut
65 Princeton reverb re-issue
2010 Guild Gad-F40e