Sovtek Deluxe Big Muff Pi Distortion/Sustainer



Did you know? The circa 1991 Sovtek “Civil War” Big Muff (dubbed that because of its blue and gray chassis) used the same circuit as the “Tall Font Green Russian” Big Muff and our EHX Green Russian Big Muff! The new Sovtek Deluxe Big Muff expands on that big, wooly sound with the addition of the Deluxe Big Muff’s advanced controls while paying homage to the Civil War Big Muff aesthetic.

It’s all here in one integrated pedal. The Sovtek signature sound. The devastating low end, crisp highs and non-scooped mids, plus the advanced control of the Deluxe Big Muff in a single, completely integrated pedal.

We’ve kept the familiar Sustain, Tone and Volume knobs, and we’ve added a ton of extras from the Deluxe Big Muff for those who crave its deep sound shaping abilities.

Here’s what the Sovtek Deluxe Big Muff Pi provides:

1. MIDS EQ – Parametric MIDS EQ section with a selectable center frequency ranging from 310Hz to 5.0kHz, a level control with up to 10dB of boost or cut and a high/low Q switch that sets the resonance/bandwidth of the EQ

2. FOOTSWITCH for MIDS EQ – Dedicated on/off footswitch with status LED for the MIDS EQ circuit

3. GATE – Noise gate to remove unwanted hiss and hum

4. BLEND – Mix control for the dry and distorted signals. Enables bass players to retain their signal’s low end; also useful when layering in other distortion pedals

5. WICKER– With the switch up, high frequency bandwidth is opened up for a more pronounced attack. Switch down yields the traditional Green Russian sound.

6. EXPRESSION PEDAL INPUT – Sweeps the frequency of the MIDS EQ to create wah wah and cocked wah effects

7. TRUE BYPASS – Maintains signal path integrity in bypass mode

8. INTERNAL INPUT BUFFER SWITCH – An internal slide switch to engage a buffer on the Big Muff’s input circuit that increases the high end content of both the distorted and clean signal being blended in

9. MIDS EQ TRIM POTS – Three internal trim pots for adjusting (a) High Q bandwidth, (b) High Q output volume and (c) overall MIDS EQ output volume.

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Quick Specs
- A fully integrated pedal that combines the “Civil War” / “Tall Font” Green Russian Big Muffs plus the Deluxe Big Muff Pi
- Foot-switchable MIDS EQ section that delivers extensive sound shaping control
- High Q / Low Q switch
- Wicker switch to open up high frequency bandwidth
- Noise Gate
- Expression pedal input
- True Bypass
- Equipped with a 9Volt battery, accepts an optional EHX 9.6DC200mA power supply
From the Blog
Posted 11/30/2018


The new Sovtek Deluxe Big Muff Pi combines the Civil War and Green Russian Big Muff signature tones with the enhanced sound shaping control of the Deluxe Big Muff in a single, integrated pedal.

EHX Founder, Mike Matthews, stated: “The Sovtek Deluxe Big Muff delivers the devastating low end, crisp highs and non-scooped mids players love in the Civil War and Tall Font Green Russian with the powerful sound shaping control of our Deluxe Big Muff.”



The Sovtek Deluxe Big Muff Pi provides:
1. MIDS EQ – Parametric MIDS EQ section with a selectable center frequency ranging from 310Hz to 5.0kHz, a level control with up to 10dB of boost or cut and a high/low Q switch that sets the resonance/bandwidth of the EQ
2. FOOTSWITCH for MIDS EQ – Dedicated on/off footswitch with status LED for the MIDS EQ circuit
3. GATE – Noise gate to remove unwanted hiss and hum
4. BLEND – Mix control for the dry and distorted signals. Enables bass players to retain their signal’s low end; also useful when layering in other distortion pedals
5. WICKER– With the switch up, high frequency bandwidth is opened up for a more pronounced attack. Switch down yields the traditional Green Russian sound.
6. EXPRESSION PEDAL INPUT – sweeps the frequency of the MIDS EQ to create wah wah and cocked wah effects
7. TRUE BYPASS – maintains signal path integrity in bypass mode

The pedal comes equipped with a 9Volt battery and will accept an optional EHX 9.6DC200mA power supply. It is available now at a U.S. Street Price of $149.00.



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Show your colors with genuine EHX tee shirts and authentic Electro-Harmonix accessories!
Get this limited-edition Day-Glo poster of the original 1968 art that inspired the Electro-Harmonix logo!

Mike Matthews stated: “The image on our Flashback Poster is of the original artwork that inspired the famous Electro-Harmonix logo. I think players who dig our pedals will also enjoy the chance to own a piece of EHX memorabilia.”
Did you know that Electro-Harmonix makes many of the world's greatest vacuum tubes? The next time you need to re-tube your guitar, bass, or hi-fi amp, be sure to insist on getting authentic Electro-Harmonix tubes.
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Dig it, now you can rock EHX in our new heavy-duty black hoodie! It’s emblazoned with the iconic Electro-Harmonix Flashback logo in white on the left chest and back.