I have a 70s Traynor YGM3 valve amplifier. The clean sound is nice, especially with the reverb. When I use a fuzz, the sound becomes kind of distant, compressed and buzzy, sounding harsh and unpleasant. They sound slightly better into the low input but still bad compared to my little single-ended el84 practice amp. I know the speakers on these amps are supposed to be poor but if the clean sound is good, wouldn't that rule out the speaker as a limiting factor?