The Wren and Cuff Tri Pie ‘70 is a recreation of the Pi-era Big Muff, and the version that was produced from approximately 1977 to 1978.
It gets its name from the pi symbol on the original enclosure. It’s a different character from the Ram’s Head Caprid. It’s more aggressive, with more bite and a slightly different harmonic content. Famous users of the Pi include Frank Zappa, Billy Corgan, Jack White, The Edge, Beck, and Pete Townshend.
Wren and Cuff studied the Pi circuit in the same way they study all their recreations- from actual vintage units rnot just schematics!
The result is a pedal that captures the specific character of this version of the Muff rather than a generic approximation.
Key Features
- Pi-era Big Muff recreation — 1977-1978 vintage circuit
- More aggressive character than the Ram’s Head — more bite and edge
- Built from vintage units, not just schematics
- True hardwired bypass
- Lifetime warranty
- Made in Los Angeles, USA
Power
9V DC centre-negative only. Do not run above 9V — Muff-style circuits rely on specific transistor biasing and higher voltage reduces the distortion character significantly. Battery operation is supported on all Wren and Cuff pedals. At 5mA the current draw is extremely light.
Watch The Wren and Cuff Tri Pie 70 In Action
FAQs
A version of the EHX Big Muff Pi produced approximately 1977-1978, identified by the Pi symbol on the original enclosure. It’s considered more aggressive than the earlier Ram’s Head.
The Caprid recreates the Ram’s Head circuit from the early to mid-1970s. This is smoother, with more violin-like sustain. The Tri Pie ‘70 recreates the later Pi circuit, which is more aggressive.
No — do not run any Wren and Cuff Big Muff-style pedal above 9V. Higher voltage reduces the distortion character significantly.
Yes.
9V DC centre-negative or a 9V battery at 5mA — one of the lowest draws of any pedal available.
Lifetime warranty on all Wren and Cuff pedals.
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