I'm using an old (brown grillcloth) 2203 head into a Celestion G12-65 loaded 4x12 cabinet, and I do love the sound and feel of that amp. But, sometimes I do feel that the treble is VERY piercing when playing stuff on the high E and B strings. Still the Treble is on 9 'o clock and the Prescence is on zero. It might just be the fact that the amp is extremely loud, and the issue is actually volume, cause I don't experience this on low volume settings. But, is there anyone else experiencing the same thing? What can be done about it?