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Big Fluffy Pie - Bass Blender

Our contribution to the happiness of bass players everywhere... a Big Fluff circuit with an on-board clean blend, optional mids control and optional first-stage diode lift switch.

The same circuit variations as our standard Big Fluffy Pie kit are available as a starting point. The clean blend is FET-based, the same our our Blender kit.

You have four options for the Tone section:

  • standard with no mids control
  • standard (3n9 cap) with mids pot
  • AMZ Presence mods V1
  • AMZ Presence mods V2

For more details on the two AMZ versions have a read of this.

Lifting the first set of diodes gives a much more open, less compressed sound. Particularly useful for bass.

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
  • NYC Reissue
  • Elk Sustainer (NPN Version)

Mascis model doesn't have the tone bypass that was on the original. 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-Muff. Kit Rae's Big Muff Page is a great read.

All this fuzzy fun in a 1590B enclosure. Fat muff in a skinny body. Sweet.

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

Pot spacing is tight, so you'll need small knobs - 17mm or less diameter - if you're including the mids pot.


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 available as an option 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: 50 x 50mm

Knobs required: 4/5

Enclosure: 1590B

Direct Connect compatible (4-way)


Download the INSTRUCTION PDF

BigFlufffBlend

Pedal Parts

120.0g

New

£39.60 inc. tax

£33.00 ex. tax
? Tax based on United Kingdom.
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Customer Reviews

9 review(s) posted (write review)
Beats the stock EHX versions 5 product stars
"This pretty much wees all over the stock EHX Bass Muffs from a very great height. Went for the Civil War variant with Diode Lift and AMZ1 options for my bass board - remember to take stock of all the parts for those mods FIRST as there are some parts for the stock circuits and their BoM which have different values, meaning you could end up having to desolder a resistor or two if you're not careful (yes, I did exactly that). Not a hard build at all, and the end result sounds terrific - a huge range of tones and variables with all the knobs, can cover pretty much most bases for your basses. It's a good one!" Steve Thumper - 29 September 2023
Gigantic 5 product stars
"Fuzzdog have done it again!! I put together the Civil War version last night, and it sounds incredible. The blend is something I ve always wanted in a big muff, and means I can use it with my double bass in a way that isn t absolutely tasteless - I ve never felt more powerful on stage Shipping was lightning fast as always, so ten out of ten. Thanks so much!" Ben M - 06 July 2022
Sounds Amazing 5 product stars
"Very well designed. Sounds great with a lot of variability in the output." Richard Howes - 03 March 2021
Ram's Head, AMZ V2 5 product stars
"I've decided to build the Ram's Head version of this pedal, and it sounds killer! I've built this pedal just before the EHX Ram's Head Reissue came out and I am convinced that this pedal is way better than the reissue due to the mods you can implement. For instance the blend control and diode lift switch which are super usefull when playing on a bass (I'll have to admit that I never use this when I play on guitar). I've also decided to implement the AMZ V2 presence control. The scooped mids aren't my cup of tea, but I really dig that I can boost the mids so I can cut through the mix. A side effect of the AMZ V2 is that my muff starts oscillating when I have the gain cranked, slightly lowering the gain fixes this. I don't see this side effect as a negative aspect of the mod, I see it as a feature for which I am still unsure on how to use it." Thom van Hoorn - 21 March 2020
Civil War AMZ 1 5 product stars
"This is my 4th build from Fuzz Dog and my 3rd "fluff" variant. I've been looking for a Muff with a smaller footprint to replace my black Russian Muff for my bass setup. I chose the Civil War clone after reading that it is the best on bass. I had my expectations lowered after my previous two Muff-ish builds were lackluster -not an insult to Fuzz Dog, I probably wouldn't have liked the originals either. I am happy to report that this pedal is amazing for both bass and guitar. This is the archetypal Muff for me; it is very smooth and huge sounding without adding an artificial sounding "sizzle" like other Muffs I've tried. The diode switch puts the pedal beyond any other Muff I've used. On bass, I use both sets of diodes for a more compressed, focused sound; but on guitar I've found that switching it to bypass really lets that character of my guitar come through. I would recommend this over the recent EHX Green Russian reissue and the Bass Big Muff." Awkbinoc - 31 October 2019
Muff Fuzz For Bass - Awesome! 5 product stars
"10 minutes with a mates Civil War Fluffy Pie and I knew this is what I'd been wanting for a long time without really knowing it. One Green Russian later and this is always going to have a place on my pedalboard, along with my EBS Octabass. Bass fuzz heaven with blend on board. Nice!" Chris - 05 April 2019
Fantastic 5 product stars
"The perfect fuzz.... After some research decided to build the Civil War version with AMZ V1. With diode switch and all pots. Pre-drilled enclosure made assembly very easy to do. Can recommend!" YEAHroen - 29 June 2018
Incorrect BOM 2 product stars
"Ordered a Rams Head kit and did not receive correct BOM for Rams Head. Attempted to build something from what was provided with negative results." Terrence Ussery - 16 January 2018
Your Quest Ends Here! 5 product stars
"Fantastic! I went for the Civil War with diode switch and AMZ V1. Absolutely awesome for bass. It immediately became my favorite fuzz. So many tone possibilities with this thing! If I ever decide to build a different flavor, it will be this Fuzz Dog kit for sure." Pete - 11 April 2017

Don't forget to download the
General Build Guide

 

PRE-BUILT KITS:
We're only building for UK customers right now. Please don't order from elsewhere as we'll simply have to refund you. You're currently looking at two weeks for pre-built pedals. Hang tight!

 

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