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Ultimatum Octave-Up Fuzz

A now discontinued boutique take on the fantastic Foxx Tone Machine. Meaty fuzz tones with a selectable octave-up mode for piercing, in-your-face fuzz fun.

Responds nicely to guitar volume changes, and with the Fat/Bright mode toggle switch you get two completely different sounding pedals in one.

With the fuzz wound back and the guitar vol knocked back a touch this gets you some excellent QOTSA tone. With eveything turned up and the octave on you'll be spitting out leads that'll cut through anything.

Twin PCB set-up for super-simple construction with minimal offboard wiring (6 wires, to be precise). The kit is supplied with vertical-mount pots which have round shafts, so you'll need set-screw fitting knobs.

Footswiches and LEDs mount on a separate daughterboard which connects to the main circuit with a short 6-way ribbon cable (supplied).


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

Partial kit: PCBs, all board-mounted components (not footswitches), 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: Ultimate Octave

Difficulty: Medium

PCB size: 82 x 50mm / 82 x 22mm

Knobs required: 3

Enclosure: 1590BB


Download the INSTRUCTION PDF

UltOct

Pedal Parts

New

£45.60 inc. tax

£38.00 ex. tax
? Tax based on United Kingdom.
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Customer Reviews

7 review(s) posted (write review)
Superb Fuzz. 5 product stars
"This fuzz unit is absolutely amazing, way way better that what I was expecting, fat fuzz with lots of overtones and touch sensitivity to pick attack, stomp on the octave up and the thing can peel wallpaper off,this one is going straight on my board. Again brilliant service from Fuzzdog and a lot of fun to build,the build documents are very good and easy to follow. Marshall Superfuzz is next to build so I best get on....Thanks Mr Fuzzdog.
" Mark - 24 October 2023
Exceeded my expectations 5 product stars
"Got the ultimatum pedal as I m trying to complete a pedalboard, what a cracking pedal. This is the second pedal I buy from FD, deffo recommended, well built and fast delivery too. Get your qotsa in a box tone, you won t regret it. I have many octave fuzz pedals and this one is by far my favourite" Dario - 21 April 2023
Pretty Flipping Saweet! 5 product stars
"First time building a pedal and soldering. I got confused a few times the colours/lables where a bit weird and had to look up a few things... but I figured it out. It sounds great! I would definitely recommend this pedal build" James - 13 August 2022
Very nice 5 product stars
"very nice quality, bought it 2 years ago, still work nicely" thomas - 18 June 2022
Lil Sis 5 product stars
"This fuzz just sounds incredible. I don't find much use for the fat position, but that might be because of my setup. The octave sounds incredible and the fuzz is like a thick muff type with tons of sustain. I am loving this thing. Oh yeah, and building was nice and easy with the dual PCBs" Pablo - 19 December 2020
Raw fuzz with a pristine octave 5 product stars
"Man this fuzz box rocks! It's a very raw and agressive fuzz which will probably tear your face off if you stand to close to your amp. Once you stomp the octave switch on this pedal you'll know why people love this pedal. The octave is very clear and tracks amazingly well. Not like an octavia which only tracks when it feels like it. If you're in the market for an octave fuzz, please consider this pedal. It will definitely be worth your while." Thom van Hoorn - 21 March 2020
Diversity 5 product stars
"Wow, this thing has an amazing range if sounds,from fat scooped fuzz to ear splitting octave action! Very simple build. Loving it" Simon A - 18 January 2016

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.