Took the 300 to rehearsal to check for buzz. I noticed it. Hard to tell how loud with people talking, etc. Not loud, but still there, so I think Chuck's initial thought to send it back holds. But, I will take the 500 over there tomorrow to compare before sending it back. The fans on those covers a little buzz and with the 300 having no fan noise, buzz is more apparent. Also a little louder on the 300 as well. Nice sounding amp otherwise. Not a big in the lows or all around heft, but it's got knobs and sliders to fix that.


