The SviSound SiMosFuzz is a fuzz effects pedal that uses both silicon and MOSFET transistors in its circuit, built by SviSound. What sets it apart visually is its enclosure: Pedal of the Day noted that "the special real wood design also gives it a rustic and antique-ish look," which makes it stand out on a board full of metal boxes.1
SviSound bills it as the SiMosFuzz Silicon MOSFET Fuzz, and the pedal was featured on Pedal of the Day in 2017.2
Sound and character
Pedal of the Day's reviewer described the SiMosFuzz as giving off "very '70s, classic rock-esque types of tones with ease, making it a great rock and roll unit."1 The circuit uses both silicon and MOSFET transistors, and the review credits it with providing high input impedance and higher gain.1
Pedal of the Day reviewed the pedal2.
That pickup flexibility is worth noting for players deciding between fuzz designs: germanium fuzzes, like SviSound's own RetroZoid Germanium Fuzz and Germanium Fuzz Mini, are often more particular about what feeds them, while the SiMosFuzz's silicon and MOSFET design was found to sit well with both pickup types.1
Controls
The SiMosFuzz keeps things simple with three knobs. Pedal of the Day describes the Volume, Tone and Fuzz knobs as "the controlling factors to the SiMosFuzz, and work together to form a cohesive array of" drive and fuzz sounds.1
| Control | What it does |
|---|---|
| Volume | Output level |
| Tone | Tonal shaping |
| Fuzz | Amount of fuzz and drive |
Power and bypass
The pedal is powered by a 9V supply, according to Pedal of the Day's review.1 It features true bypass technology, so when it is switched off, your guitar signal passes through without the fuzz circuit in the way.1
Videos
SviSound
SviSound
Pedal of the Day
Questions
Is the SviSound SiMosFuzz true bypass?
Yes. Pedal of the Day's review describes the SiMosFuzz as featuring true bypass technology, so the pedal is removed from your signal chain entirely when switched off. That means it will not load or color your clean tone when disengaged, which matters if you run it alongside other pedals on a board.
What do the three knobs on the SiMosFuzz do?
The SiMosFuzz carries Volume, Tone and Fuzz knobs. Pedal of the Day describes these as the controlling factors of the pedal, working together to shape its drive and fuzz sounds. The Fuzz knob sets the amount of fuzz, the Tone shapes the treble character, and the Volume sets the output level.
What power does the SiMosFuzz need?
The SiMosFuzz is powered by a 9V supply, according to Pedal of the Day's review. A standard 9V DC pedal power supply or a supply with multiple outputs will cover it.
Does the SiMosFuzz work with single coils?
Yes. Pedal of the Day's reviewer found that the pedal works well with humbuckers and single coils alike. The circuit provides high input impedance and higher gain, which reviewers noted, and that combination helps it sit comfortably with brighter, lower-output single coil pickups as well as hotter humbuckers.
Sources (2)
- SviSound SiMosFuzz Silicon MosFet Fuzz, Pedal of the Day, 2017-04-19
- SviSound SiMosFuzz Silicon MOSFET Fuzz, Pedal of the Day, 2017-03-13
