I've been looking for an amplifier for quite some time now. It seems like most of them fall into two categories: the ones I don't like the sound of, and the ones I can't afford.

I use distortion tones a lot, and a lot of the more affordable tube amps that I've tried have this fuzzy top-end that you can't get rid of. Turning down presence or treble just makes it sound muddy, turning down the gain makes it less saturated.

I'm not sure how to describe it adequately. And it's not mains hum. It's part of the actual sound.

The more expensive amps don't seem to have this problem, at least not as often.

Does this bother anyone else?
Does anyone know what causes this and if it can be avoided? Is it the circuit, or the lower quality components?

EDIT: Here's an example. Not a very good one, but it's all I could find
Becomes particularly obvious at 5:10
Last edited by sashki at Jul 22, 2010,