The Fredric Effects Demon Fuzz is a new take on a classic pedal. The late 70s EH Muff Fuzz was a great-sounding mid-gain fuzz with only a volume control to fiddle with. Originals are rare, fragile and expensive, so Fredric Effects have used the basic IC (integrated circuit) Muff Fuzz as the basis for the Demon Fuzz. We've upped the gain a touch, added a switch for selecting silicon clipping diodes for a crunchier distortion or germanium for a vintage correct sound.