Mach 1 Overdrive mods?


Great, thanks.

The only time I used one was in the tone stack of my valve amp and that was because of the voltage rating.

But to be faithful, I'll get some in stock ;)


New member
These mods for goosing the gain up a bit are great! Love the slight mid girth the 220n cap got. One thing: what should I try if I want some more brightness? The tone knob maxed is a PERFECT sound, but there may be instances I’d need a little more high end on tap. A resistor/cap or maybe even just a different tone pot value?