For the Fundamental Series, we challenged ourselves to design a set of pedals with the tonal integrity that’s required to live on a professional’s pedalboard, but with simplified controls friendly enough for even the newest effect pedal users. Each Fundamental pedal has 3 sliders for tweaking the sound and a three-way switch for changing pedal modes. The result is a line of 8 pedals that will keep you covered from your first band practice all the way to a sold-out arena. Designed and assembled at Walrus Audio headquarters in OKC, OK.

Fundamental Tremolo

The Fundamental Tremolo is a classic optical tremolo, giving you that iconic chewy movement. With 3 wave shapes to select from, you can get sounds from smooth and soothing to glitchy and crazy.

Rate – The Rate slider sets how fast or slow the LFO is oscillating.

Depth – The Depth slider controls the strength of the tremolo effect.

Volume – The Volume slider sets the overall output volume of the pedal.

Slide Switch – The slide switch allows you to change between 3 distinct oscillator waveforms: Sine, Square, and Random.

Bypass Switch – Turns the effect on and off.

Bypass LED - Illuminated when the effect is engaged.

Input Jack - 1/4 inch cable from the instrument.

Output Jack - 1/4 inch cable to amplifier.

9v Jack – 9-volt DC, Center Negative, 100mA min