Unsolder the two red LEDs shown in the photo and remove them for a noticeable increase in gain/headroom and a better sounding breakup. They have a high insertion loss (loss in gain = output db's) and I've never liked what they yielded as far as distortion when used in amps, certain fuzzes yes. Good in some fuzz circuits, I've never really liked them in amps. ![]() I looked at the early schematic that's out on the web and found they used a square wave shunt clipper in the form of two LEDs right in the main signal path. Also the output is just there and not quite up to task to bring to a gig. ![]() There seems to be a consensus (myself included) that the gain control is, well pretty useless as the distortion is less than favorable. Someone recently was inquiring about mods for the Vox Pathfinder 15/15r amps and I had a look see at what could be done to improve the amp a bit.
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