Big Muff Pi Fuzz - Big Box

The daddy of thick, meaty fuzz. Everyone needs some Fluff n their life. And for some strange reason some people prefer a bigger box. Well, here you are.

All the features of our Multi-Fluff version of the PCB but designed for 1590BB builds. Optional extra functions are:

• board-mounted toggle switches for alternative diode clipping on the second and third gain stages.
• extra pot pads for alternative tone controls with mid-shift.

Kits available for the following versions of this classic:

• 70's (3rd) version
• Green Russian
• Black Russian
• Civil War Russian
• Tall Font Green Russian
• Ram's Head
• Triangle
• Violet Ram's Head
• V3 79#2 (Mascis)
• Creamy Dreamer
• Stoned cleric
• Hoof
• Cloven Hoof
• Elk Sustainer (NPN version)

Mascis model doesn't have the tone bypass that was on the original, but a Muff without Muff tone is no Muff at all. Creamy Dreamer doesn't include the ludicrous power filtering of the original.

What's the difference in the above versions? That's a website all to itself, and whaddayaknow? There IS a fantastic resource on all things Big Muff. Check out Kit Rae's Big Muff Pie page.

All versions are available as four-knob with AMZ Presence Control (version 1 or 2) instead of the three-knob standard tone circuit. For more info on those have a read of this. If you select Hoof or Cloven Hoof, these already have a tone section that includes a mids shift pot. Please DO NOT select one of the AMZ options when ordering as you'll just be adding extra cost to your order. Three and four knob versions are available with any of the jack/DC position options, we just didn't think it was worthwhile showing a picture of every possible combo. Top mounted version comes with Lumberg jacks instead of Neutrik as they fit better above the pots.

If you want to get really tweaky with your fuzzing you can add the optional clipping diodes and switches. If you go for this option we'll include four each of germanium, 1n4001, BAT46 and red LEDs.

The kit is supplied with vertical-mount pots which have round shafts, so you'll need set-screw fitting knobs.

If you want the PCB without parts there's a link for that at the bottom of the page.

Partial kit: PCB, all board-mounted components, pots.

Full kit: As above, plus footswitch and appropriate daughterboard/components for your selected bypass type (see Downloads section for details of those), jack sockets, DC socket, battery snap, hook-up wire, LED.

Enclosure (pre-drilled) is only available with full kits, and will not take a battery. Knobs are not included.

Builds are only available with full kits including enclosures. Please choose appropriate knobs.

Inspired by: Lots of Big Muff Pi variants

Difficulty: Medium

PCB size: 80 x 38mm

Knobs required: 3/4

Enclosure: 1590BB

Download the INSTRUCTION PDF