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Hi there, welcome to my blog - La Revolution Deux. It's an odd name - but I like it! Here you will find all the info on my various DIY Guitar effects builds, amplifiers and guitars. Everything from a humble Ibanez tubescreamer to the holiest KLON Overdrive.

You may also find a few effects builds that I am looking to move on - usually in exchange for other effects/gear/cash. You can always check my ebay account to see what I've got up for grabs.

Have fun, enjoy the blog - Fred Briggs :-)


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Tuesday 10 July 2012

Blackout Effectors - Twosome Dual Fuzz, Fix'd Fuzz & Musket Fuzz

The Blackout Effectors Twosome playing a bit of Table Football
Blackout Effectors make some really cool looking and sounding boxes. With their introduction into the ProGuitarShop product line I decided to take a look at a few of the nifty fuzz boxes they offer, in particular the Twosome Dual Fuzz and the two circuits which make up the Twosome - the Fix'd Fuzz and the Musket Fuzz.

Before we get started looking at schematics let's check out how the Twosome sounds;

Pretty cool. The sheer number of combinations available with the Fix'd make it one hell of an effect that you could play with for hours and still not find all the tones the Twosome is capable of producing (the red eyes of the owl and rabbit just make it extra special). The one criticism I would have is that you can only run one of the circuits at a time and not run the effects into one another and "stack" them up for even more versatility (although there is a special edition available which does enable you to run both circuits at once).

Here's the description of the Twosome from the Blackout Effectors site;

"The Twosome is a meaty fuzz sandwich made up of the Musket Fuzz pedal and the deluxe version of the Fix'd Fuzz pedal. Both circuits run independently in an A/B configuration allowing you to dial in your perfect fuzz or overdrive tone on each and then switch back and forth between them. You won't find more dirt under one roof - unless you live in a mud hut."

This is a gutshot from an early twosome pedal
So, we're going to need schematic's for both the Fix'd Fuzz and Musket to build one up. Never fear - both schematics are here! First up the Fix'd fuzz, I love the ant graphics;

Here's the description of the Fix'd Fuzz from the Blackout website;

"The FIX'D FUZZ V3 is the hydra-headed dragon of handmade fuzzboxes/boosts/overdrives. Replete with two polar-opposite fuzz tones, a full-bodied boost through light overdrive and a (wide) tone sculpting stage. It delivers BIG diversity in sound - all in a SMALL footprint package designed specifically for the cramped pedalboard. All 4 stages of the circuit are bypassable via their respective toggles, meaning you can add/remove from the stack as your black heart desires."

Fix'd Fuzz schematic (note the 3k9 resistor on the boost transistors emitter is actually 390R)
So, looking the the Fix'd Fuzz schematic there are 4 distinct stages - a standard boost transistor stage - as is seen in the first stage of the Big Muff or in the old Electro Harmonix LPB-1. The second stage "Fuzz 1" is the old DIY classic Hemmo's Bazz Fuss. The third stage "Fuzz 2" is a strangely mis-biased fuzz face circuit. The final stage is a tone control comprised of a Big Muff Pi filter and gain recovery stage.

The regular Fix'd fuzz only has controls for the Boost, Tone and Volume, the rest of the pots are inside as trim pots, the newer Fix'd Fuzz Deluxe has all the controls on the outside of the enclosure.

Fuzz Cat!
And finally the Blackout Musket Fuzz, here's the Blackout description;

"The logical progression from then to now, the MUSKET is based on one of the raunchiest, best selling fuzz circuits of all time - taken three giant muffy steps further. With the addition of the PRE, FOCUS & MIDS controls, the MUSKET is able to traverse the decades, the continents and the many iterations of the classic 4-stage fuzz circuit - from emulation to beyond. If you need fuzz and you need it to be massive...

And bass players, look no further. The Musket brings the thunder to perfectly compliment your lightning. You'll find the Musket on pro bass player boards the world over."

NOTE - You must take into account these corrections to the Musket schematic; 

"R27 470k -> 10k
R17 10k -> 56k
C6, C9 47n -> 100n
C11 100n ->47n"

So yeah, as Blackout says it's a modified Big Muff - an essential weapon in any Guitarists armoury. The "Focus" control is basically a bass blend type control which allows you to dial in the level of bass that hits the front end of the clipping stages - I like this approach, I think removing bass before clipping greatly improves the clarity of the effect.

So if you're into fuzz there are two interesting options for you to look at, although the circuits are pretty standard the manner in which they are combined, especially in the Fix'd Fuzz, makes for some really interesting sounds.


  1. Hi
    Musket fuzz corrections are mandatory or pedal will work anyway without these corrections? I've build a musket fuzz but the volume output is too low. Any suggestions?

  2. Would love a PCB for the Fix'd fuzz =D

  3. Such information is very important, I like reading it.

  4. These are all great fuzz pedals! I love the Twosome Dual Fuzz for its versatility. The Musket Fuzz is a great all-around fuzz pedal that can do a little bit of everything.

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  7. The Twosome Dual Fuzz is a versatile pedal that houses two distinct fuzz circuits in one unit, allowing players to experiment with a wide range of sonic possibilities. With its intuitive controls, it's easy to dial in everything from vintage, velcro-like fuzz to modern, aggressive tones, making it a go-to choice for those who crave variety in their fuzz sounds...... uncontested divorce in virginia cost


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