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Rent Walrus Audio Monument Harmonic Tap Tremolo

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Inspired by the beautifully jagged, red-sand desert landscape of Monument Valley, the Monument Tremolo is both a harmonic, and standard tremolo that produces a rich, luscious, warm pulsating modulation capable of peaks and valleys as smooth or as jagged as the real ones that our dear mother nature created long ago. 

With different combinations of the rate, division and shape knobs and tap tempo, everything from traditional tremolo to inspiring unique waveforms will help you carve new paths that you won’t hear anywhere else.

Harken back to vintage tones inspired by Fender Brownface amps in Harmonic mode. A low-pass and high-pass version of your guitar signal are modulated opposite of each other, or 180º out of phase (high and low frequencies rise and fall opposite of each other). The result is a warm, almost “chewy” tremolo.

The Division knob can be set to quarter, triplet, eighth and sixteenth.

Wave shapes can be controlled via the Shape knob. You can move between Sine, Square, Ramp, Lumps and Monument Mode (random).

A special feature on the Monument is the bypass switch also has a momentary function. When the switch is in off position, press and hold to temporarily activate the effect to add a moment of texture. Releasing the switch turns the effect off.

Setting the depth knob at 0 and the volume knob above unity creates a clean boost.


  • Exact size of the diecast enclosure is 4.67” x 3.68” x 1.547”.

  • Power requirements are 9VDC (250mA minimum)

  • The use of an isolated power supply is recommended for powering all Walrus Audio Pedals. Daisy chain power supplies are not recommended.


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5.00 Average

1 Reviews

Matthew T

I tested this one side by side with the Stomp Waves trem box. Sonically, I have a feeling the Monument might have a little more of and edgier bite when the depth is pushed, but this is a subtle thing. The main difference between the two boxes is that Waves gives you more control of the wave form, and Monument gives you the option of "Harmonic" trem. Even a small amount of depth on the harmonic setting adds an interesting flavor to the tone - something that can be hard to put your finger on, but it is there. Like a subtle flanger - it is cool. The Waves gives you way more control over wave shape and those sonic qualities, but what brought me back to the Monument is the ease of use, and how fun it was to find new sounds. I think the controls are laid out more intuitively, and made it easier to tweak until I had something that inspired me to play. In short, I think if you want to explore new sonic territory, try the Monument. If you want to refine your trem to perfection, then maybe the Waves is for you.

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