I'm unable to post sounds clips, as of now anyway, but thought I'd share my personal mods with the forum. Without sound clips I know it doesn't really help you decide whether or not to mod it, but to give you an idea of what I was looking for (and achieved) I'll share my taste in tone. I wanted a thick and heavy, yet also clean sound. I wanted that Marshall tone you hear at a live AC/DC or Slayer concert when they're cranked up. Something that sounded like an OD pedal was hooked up to, but wasn't needed for that thick tone. For those of you who run a patch cord in the Fx loop, imagine that much change plus more. A jumper plugged in there does nothing now. Here goes- First, install the R2 bypass cap. I went with a 6.8uf from the start. This alone will surprise you. Mine is a 50v with the +side on the leg of R2 facing the power amp board, and the - side soldered to the post labeled "SCN". Do not connect it to the other side of R2. My R37 ohm'd 8.2K so I left it alone.(from previous mod) Changed R33 to 10K Changed R7 to 6.8k Changed C25 to .1uf Jumped R54 with 390pf cap Changed R35 to 56K (didn't go with 68K because 56K was already in) Changed C8 to 100pf cap (a cheap ceramic disc type actually sounded best) Clipped C33,35,48 and R13 Upgraded C5,15,37,38,39 to 400v Bypassed C11(not clipped, replaced with wire) For the slope resistor (R61) I used a 220k pot in place of the resistor by removing it and running the wires from the pot in their place. The plan was to adjust it to my liking, then put a resistor of that value in its place. Well, for me anyway, 220K was the best. To add a little more bass, you can strap R15 with a .0022 to .0047uf cap. I used a .0033. Plate voltage is 486 (was 472) and is biased to 42ma which is 68% with 30 watt tubes I hope this helps someone. I highly recommend these mods. And you can change certain values to your tastes, but you can't pick and choose certain mods because some of them work together. My Les Paul sounds amazing through it. The A channel alone has enough distortion to play most songs.