Hi folks: Just switched my gear back to Traynor/Yorkville after a few years away. Love the tone, but I am lacking a bit of clean headroom. To that end, I'm looking at re-tubing the whole thing. Would like suggestions for EXACT types/brands to achieve more clean headroom and allow a bit more volume. Current Config is two 12AX7 pre-amp tubes, a 12AU7 phase-splitter, and four KT88 power output tubes. (thinking switch to 12AT7 ?) I'm also wondering if a change to Speakon jacks would help - I would thing that they would offer a bit more conductivity to the cabs. (using a 2x10 & 1x15 - both 8ohm) If anyone has experience with these or could suggest any other modifications I would appreciate it. Have always played with stock equipment. Have seen snippits on the web saying that this is a very easy amp to mod - just cant easily find specific specs. Thanks in advance!