Description
Some fuzz pedals just get lost under a bass rig. This one doesn’t. MXR built the Sub Octave Bass Fuzz around the Growl circuit from their Bass Octave Deluxe, then paired it with a fuzz section designed to hold its low-end ground instead of collapsing into mush.
The heart of the pedal is a three-way blend control that lets you mix your dry signal, the fuzz, and a sub octave voice independently. That means you’re not stuck with an all-or-nothing fuzz — you can keep a foundation of clean low end underneath the grit, or go full sub-octave chaos when the song calls for it. It’s the kind of control that makes the difference between a fuzz pedal you use once and one you leave on your board for years.
A 3-band EQ rounds out the tone shaping, giving you the ability to carve out mids for cutting through a dense mix, tighten up the lows so they don’t flap, or push everything into dirty, dominating territory. Whether you’re after a subtle growl for added texture or a wall-rattling low end that fills the room, this pedal has the range to get there.
- Combines Growl circuit from the Bass Octave Deluxe with a dedicated fuzz section
- Blends dry, fuzz, and sub octave signals independently
- 3-band EQ for precise tone shaping
- Built for low-end heft without losing definition
If your dirt pedal collection is missing something built specifically for bass frequencies, the MXR Sub Octave Bass Fuzz fills that gap.









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