Electro-Harmonix
Op Amp Big Muff Pi
Faithful reissue of the circa-1978 op-amp Big Muff.
Quick specs
- MSRP
- $128
- Power
- 9V DC
- Current draw
- 5 mA
- Dimensions (in)
- 2.75 × 4.50 × 2.10 in
- Bypass
- True Bypass
- Inputs
- 1× Mono
- Outputs
- 1× Mono
Compare this pedal
Pick a second pedal to see the two side by side.
Controls
Not documented.
Power requirements
- Voltage
- 9V DC
- Current draw
- 5 mA
Dimensions & weight
- Width
- 2.75 in
- Depth
- 4.50 in
- Height
- 2.10 in
Connections
- Inputs
- 1× Mono
- Outputs
- 1× Mono
Features
- Bypass
- True Bypass
- Signal path
- Analog
- SKU
- OPAMPBM
- Introduced
- 2017
- MSRP
- $128
Documentation
- Manufacturer page
- Visit
- Manual
- —
- Specs verified
- 2026-09-22
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