Walrus AudioFundamental Drive Overdrive Effect Pedal


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Walrus Audio Fundamental Drive

Crunchy or smooth, the Fundamental Drive from Walrus Audio is their overdrive offering in their new affordable series with plenty of tonal offerings. Based on silicon diodes, choose between Smooth, Crunch with added hard-clipping, or Bright that offers hard-clipping with a low cut. Sliders let you adjust the Gain, Tone, and Volume for the perfect overdriven sound. Slip a Fundamental Drive into your signal chain and beef up your sound.

Fundamental Drive Features

  • Three-mode overdrive
  • Silicon diode based circuit
  • Smooth, Crunch, and Bright modes offer different tones and flavors
  • Sliders for Gain, Volume, and Tone control
  • Dimensions: 4.75" x 2.375" x 2.25"
  • Power Specs: 9VDC center negative (PSU not included)
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Product Demo Videos
Walrus Audio Fundamental Series Drive Tech Demo
Chavez Soliz gives a play-through of the Fundamental Drive.

The Fundamental Drive is a versatile overdrive that allows for a wide range of tones thanks to its three-mode switch. This is the perfect tool at the front of your chain to set the tone for your whole rig.

The Fundamental Drive modes are: Smooth, Crunch, & Bright.
Walrus Audio Fundamental Drive Overdrive Effect Pedal Reviews