The MWFX 8 Bit - 18 is a guitar pedal that converts the guitar signal to a square wave using an analog, transistor based circuit1. MWFX describes it as responding to guitar in a similar way to a standard fuzz pedal, but with a synthesized tone that falls in pitch as the signal trails out1. Where a conventional fuzz clips and shapes your original note, the 8 Bit replaces it with a square wave whose pitch drops as the note decays, which is what gives it its synth-like character.
The 8 Bit - 18 is one of a numbered series of re-releases of the original 8 Bit, an MWFX pedal from 2007/81. MWFX says each of these re-releases is individually handpainted and finished in oak wood1. It carries a list price of £175.001.
What the 8 Bit does to your sound
The pedal is primarily designed to react to the velocity, pitch and length of your picking2. In practice that means how hard you pick, what note you play and how long you let it ring all shape the output: the square wave follows your playing dynamics the way a fuzz does, but the tone itself is synthesized rather than a clipped version of your guitar's own sound. The most distinctive part of the behavior is the pitch drop: as the signal trails out, the synthesized tone falls in pitch1.
MWFX has nicknamed the 8 Bit "our square egg"2, a reference to the square wave at the heart of the circuit. Internally, the pedal is off board wired with mPPE wire, kept separated to minimize noise and crosstalk from the clocks and switching1.
The controls
The control surface is deliberately minimal. Everything that shapes the effect lives inside the box.
| Control | Location | What it does |
|---|---|---|
| Volume | Exterior | Sets the output level of the effect345 |
| Sensitivity (trigger threshold) | Interior | Sets the level at which the circuit triggers on your picking678 |
| Sample length trimmer | Interior | One of 2 regular trimmers for sample length1 |
| Sample volume trimmer | Interior | One of 2 regular trimmers for sample volume1 |
There is also a setting inside to control response2. So a player's day to day interaction with the pedal is one volume knob and the footswitch; dialing in how the square wave tracks your picking means opening the box and adjusting the internal sensitivity and trimmers.
Versions of the 8 Bit
The 8 Bit - 18 belongs to a numbered family of re-releases of the 2007/8 original, each individually handpainted and finished in oak wood1. The 8 Bit - 3, 8 Bit - 16 and 8 Bit - 5 pages cover other units in the same series, as do the 8 Bit - 1, 8 Bit - Pride and 8 Bit - 15 pages.
All of the numbered versions share the same core specification: an analog, transistor based square wave circuit, true bypass, an exterior volume control, an interior sensitivity setting, and suitability for both guitar and bass3. What separates one numbered unit from another is the handpainted finish, since each box is painted individually3.
The 8 Bit - 18 is one of a numbered series of re-releases of the original 2007/8 8 Bit, each individually handpainted and finished in oak wood1. Other numbered re-releases include the 8 Bit - 3, 8 Bit - 16 and 8 Bit - 59.
Where it sits among fuzz and synth pedals
Because the 8 Bit responds to picking velocity, pitch and note length the way a fuzz does2, it can occupy the same spot on a pedalboard as a fuzz, but its output is a synthesized square wave rather than a clipped guitar signal23. Players looking for a more conventional clipped tone would look at ordinary fuzz circuits instead, while players after pitch manipulation with more conventional guitar tone might consider octave and pitch pedals. The 8 Bit's closest relatives are synth pedals, which similarly replace the guitar's waveform with a generated one.
Questions
Is the MWFX 8 Bit true bypass?
Yes. MWFX lists the 8 Bit - 18 as true bypass, so with the pedal switched off the guitar signal passes through without active circuitry in the path. This matches every other numbered version of the 8 Bit re-release the maker has listed.
Does the MWFX 8 Bit work with bass?
Yes. MWFX states that the 8 Bit - 18 suits guitar and bass. The pedal tracks the pitch and velocity of your picking, so bass players get the same square wave conversion and the same falling pitch on decaying notes as guitar players do.
Is the MWFX 8 Bit analog or digital?
It is analog. MWFX describes the 8 Bit - 18 as converting the guitar signal to a square wave using an analogue, transistor based circuit. Despite the name, there is no digital processing: the square wave character comes from transistors.
What is the MWFX 8 Bit enclosure made of?
The 8 Bit - 18 is part of a run of re-releases that MWFX says are individually handpainted and finished in oak wood. Each unit in the series is painted by hand, so no two boxes look exactly alike.
Sources (9)
- 8 Bit - 18 | MWFX, MWFX
- 8 Bit 2010, MWFX
- 8 Bit - 7 | MWFX, MWFX (mwfx.co.uk)
- 8 Bit - 6 | MWFX, MWFX (mwfx.co.uk)
- 8 Bit - 1 | MWFX, MWFX (mwfx.co.uk)
- 8 Bit - 12 | MWFX, MWFX
- 8 Bit - 3 | MWFX, MWFX
- 8 Bit - 11 | MWFX, MWFX
- 8 Bit - 16 | MWFX, MWFX (mwfx.co.uk)






