FuzzPup Big Fluffy Pie

This is part of our FuzzPup range of circuits designed for 1590A builds. Please read the general build doc available here and ensure you're happy with what's involved. They're not especially difficult, but working in a confined space can be fiddly. Take heed. This kit is especially tight so you must be absolutely 100% happy with tight work to take it on.

Of course there's nothing stopping you using these PCBs for 'standard' builds. They're Direct Connect compatible.

A different PCB is available for 'standard' 1590B builds - see the related products listed below.

The daddy of thick, meaty fuzz. Everyone needs some Fluff in their life. Now you can have it in a teeny 1590A package.

Kits available for the following versions of this classic, with more to be added soon:

  • 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

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.

NOTE: Kits are supplied with 0.125W resistors, which are tiny. Any of the kits that require 1uf capacitors will be supplied with multi-layer ceramic as film caps are too deep.

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-Fluff. Kit Rae's Page is a great resource.

All this fuzzy fun in a 1590A enclosure.

You can include a neat daughterboard to mount the three pots onto, making wiring them up a *little* easier - just nine straight wires from PCB to PCB rather than messing with those skinny little pot legs.

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.

Difficulty: Hard/Very Fiddly

PCB size: 30 x 50mm

Knobs required: 3

Enclosure: 1590A

Download the INSTRUCTION PDF to check the BOM.

Please also read this general guide to FuzzPup builds.

Note: image with circuit board in the enclosure is to illustrate the way this kit connects.


Pedal Parts



£34.80 inc. tax

£29.00 ex. tax
? Tax based on United Kingdom.

Customer Reviews

1 review(s) posted (write review)
Unbelievable 5 product stars
"Very good indeed. If you want a proper BMP sound in a tiny box, and you don't mind using a magnifying glass or a nimble fingered servant, this is the kit for you. I have the 1979 IC BMP which is far smoother, somehow less aggressive than this one (Violet Ram), This fizzes around the edges, in a good way, and makes for some slightly less predictable roughness. This is not a pedal for complex chord voicings, but it certainly is a pedal for straight up doom/sludge/filth/dumb-rock. Buy two." Steve - 17/02/2018

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Full kits DO NOT include enclosures unless you select them in the 'Kit Type' drop-down menu.

Don't forget to download the appropriate daughterboard build document for your kit:
Standard 3PDT