fwiw, mine had been making a bit of an "arc"ing sound from the get go, particularly on the distortion channel. also.. beware the trs plug for the footswitch. mine went bad, and the amp won't work right if it shorts inside. i had both channels going at once and the reverb was like a master volume. quite amusing. ok... all that said, i AM gonna mess with the circuit some i think. the dirt channel is ok, but unuseable above about 8 on the pre gain. sounds like ass. but thats for another day. i got fuzzboxes i gotta build, or mama don't eat. talk soon. keep on silkyn'n!