Hey folks! Problem here. I have a 120w Bugera (I already hear you scoffing ) 6262 Infinium head that I’ve been running for about 6 months now. Never had any issues until a month or so ago. It started sounding super muffled at low volume (0-2 on the dial) and very thin and brittle at any volume above that (2-10). This was on both clean and dirty channels. I brought it in to an amp tech down the road who said I had 2 bad preamp tubes and a dirty volume pot on one channel. I had him clean the pot and replace all 6 preamp tubes with JJ’s. After that the amp was roaring. Sounded fantastic. Today I powered up to play a bit and was thoroughly enjoying my clean channel until *uh oh* the EVH bug bit me and I switched to dirty for some Unchained goodness. But to my dismay (which developed into puzzled frustration), the dirty channel was nothing more than a weak memory of what a bad practice amp sounds like on 0.5 volume. First thought was to dial up the volume but there was no change to be heard. 0-10 is the same wimpy, flaccid, hardly audible second channel that could have been rumbling the Hollywood Bowl yesterday. Being that I’m the “Daniel-San” to your “Mr. Miyagi” I thought I’d pull on your coat for some ideas as to why I’m writing this post instead of scaring the chicken medley out of my cat. Thanks!