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EHX Deluxe Bass Big Muff

Electro Harmonix Deluxe Bass Big Muff Pi Distortion / Sustainer

EHX Deluxe Bass Big Muff Pi: Ultimate Bass Fuzz and Tone Shaping

The Electro-Harmonix Deluxe Bass Big Muff Pi is the flagship of EHX bass fuzz pedals, delivering enhancements specifically tailored to the needs of the modern bass player. Building on the thunderous tone inspired by the classic Black Russian Big Muff of the ’90s, this pedal adds a blend knob to mix back in your original tone and a gate to quiet unwanted hiss for a smooth performance. The ultimate tone-sculptor of the pedal is the crossover section, which separates the fuzz and dry signals and runs them through a high pass filter and low pass filter, respectively, creating a tone with fiery top end and a huge, thumping bottom.

Versatile Controls for Perfect Tone

The Deluxe Bass Big Muff is designed to give bassists complete control over their sound, offering versatile tone-shaping features and multiple outputs for a wide range of performance scenarios. Whether you're looking for subtle grit or full-on fuzz, this pedal has you covered.

Key Features

  • Pad Switch: Switchable between 0dB and -10dB, ensuring the pedal is optimized for use with both passive and active pickups.

  • Blend Control: Allows you to mix the direct and distorted signals to taste, preserving the clarity and definition of your low end.

  • Three Outputs:

    • 1/4" effect out
    • 1/4" direct (buffered dry) out
    • XLR DI out These outputs give you complete control over your output signal and sound.
  • Crossover Section: Foot-switchable crossover section with a variable low pass filter on the dry signal and a variable high pass filter on the distorted signal, allowing bassists to sculpt their sound precisely.

  • Noise Gate: Built-in noise gate with an adjustable threshold to eliminate unwanted noise at any level.

  • Durable Construction: Tough and compact die-cast chassis ensures reliability and durability for years of use.


  • Input Pad: Switchable between 0dB and -10dB
  • Blend Control: Mixes direct and distorted signals
  • Outputs:
    • 1/4" effect out
    • 1/4" direct (buffered dry) out
    • XLR DI out
  • Crossover Section:
    • Variable low pass filter on dry signal
    • Variable high pass filter on distorted signal
  • Noise Gate: Built-in with adjustable threshold
  • Chassis: Tough and compact die-cast
  • Power: 9V battery included

This pedal ships fully insured with signature required.