Detail 01
Bass-voiced Big Muff circuit
The standard Muff scoops mids and thins bass. This version keeps the low end intact under heavy fuzz.
Product detailSKU #1274034486494
Electro-HarmonixXO Bass Big Muff Pi Distortion Effects Pedal
rockpsychedelicgrungealternativegarage rockblues rock
Independent shopping perspective
The Korena take
The Big Muff fuzz circuit rebuilt so low end survives. For bassists who want thick sustaining distortion without their bottom disappearing.
Strong match
Who this is for
- Bassists playing grunge, garage, or heavy alternative in a three-piece
- Doom and psychedelic players wanting long sustaining fuzz notes
- Guitarists who want a darker, fuller Muff voice
Consider the trade-offs
When to look elsewhere
- Players after subtle overdrive or light grit
- Bassists needing an always-audible clean fundamental under the dirt
- Anyone wanting an articulate, note-defined distortion for fast lines
What matters in use
The specifications, translated
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.
Detail 02
Sustain control
Sets fuzz amount. Low settings give thick overdrive; maxed it turns single notes into long sustaining walls.
Detail 03
Tone control
Sweeps between dark and bright rather than boosting mids, so it works as a mid-scoop shaping tool.
Detail 04
6.2 x 5.6 inch footprint
Wider than a standard compact pedal. Measure your board before assuming it drops into an existing slot.
Detail 05
1 lb metal enclosure
Heavy enough to stay put on a floor without velcro, and takes stage abuse.
Final check
Know before you order
- 01No power supply included; check the pedal's voltage and polarity before plugging in
- 02Takes real board space at 6.2 inches wide
- 03Fuzz this thick can bury the band; set levels with the full group
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01Can I use this on guitar?
Yes. It gives a darker, fuller Big Muff voice than the standard version. Guitarists after the classic scooped Muff sound should compare both first.
02Does it keep the low end?
That is the point of the bass version. It is built so the fundamental survives the fuzz instead of thinning out like a standard Muff.
03Is this good for grunge tones?
Yes. Big Muff fuzz is central to grunge, garage rock, and psychedelic bass and guitar tones. Set sustain high and tone dark.
04What batteries or power does it need?
Check the jack on the pedal itself for voltage and polarity, and match your supply. No adapter comes in the box.
Reference
Full specifications
The complete catalog record, organized around the decisions musicians make when comparing gear.
2 detailsSize & weight
- Weight
- 1
- Dimensions Lxdxw
- 6.2 inch x 3.2 inch x 5.6 inch
