I have a 2266C that I am trying to get along with. Right now it is very bright , even with the treble & presence off. It has Tung Sol KT66's and stock Marshall preamp tubes, except a NOS "E" in V1. Don't know anything about that tube. I am thinking of retubing with all Gold Lion, power & preamp, but that would be expensive. I'm willing to do it if it will make this amp shine. Any suggestions? Setting questions; How are you using this amp. 1.) On the Low range with pedals for dirt/solos? 2.) On the High range using your guitar volume for clean dirty, etc? 3.) Mid boost on? 4.) Mid boost off? I bought this amp because I no longer have my JTM 45 or my 2203. I thought it would be a good mix of both, which it is. However I'm not in love with the tone or the distortion at this point. Help me love this amp!!!