Originally Posted by siore
Shrillness. There's this thin shrill fizz that I can't seem to get rid of. At first, I tend to like to crunch, but as time goes by, I tend to notice that it still has it. Definitely loud though, and I like the fact that it comes in a closed-back cab. Attack seems more focused because of that.
This was my experience as well, I used one a few times at a rehearsal studio that had one in each of the rooms.