Fathom Multi-Function Reverb - Onyx Edition

$219.99
$153.99

The Fathom is a feature-rich reverb w/4 different reverb algorithms. Go from tasteful, small room reverb to long, modulated trails dripping of ambient goodness.

$219.99
$153.99
Title

For this year's Black Friday limiteds we've partnered with a company that combines the love of craft and art just as much as we do. Not only have the fine folks at Onyx Coffee Labs created some killer art for this year's pedals, they've specifically branded one of the roasts with limited Onyx / Walrus packaging. As active members of the music community (working with incredible brands on coffee collaborations and many team members who actively create music), we couldn't wait to work together with them to design this year's Black Friday Limited Series.

The Fathom is a feature-rich reverb with 4 different customized reverb algorithms to choose from. Easily go from tasteful, small room reverb to long, modulated trails dripping of ambient goodness. The toggle switch adds options for low, medium and high modulation. Use the dampen knob to fine tune the tone of the reverb's decay.

The Fathom features 4 different algorithms.

Hall - Wide, open and vast with decay that ends with high-frequency rolloff. X knob adjusts pre-delay.

Plate - Full Body reverb with a smooth decay. X knob adjusts pre-delay.

Lo-fi - Filtered reverb with decay ranging from warm, to thin AM-sounding radio. X knob adjusts filter width.

Sonar -  Reverb fed with both a high and low octave with the ability to blend the octaves with the X knob.

Momentary Functions:

When the pedal is in off position, press and hold the Bypass Switch to temporarily activate the effect to add a moment of reverb. Releasing the switch turns the effect off.

Press and hold the Sustain Switch while the pedal is on, to sustain the reverb decay for a dreamy ambient decrescendo.

Trails Mode:

To turn trails mode on or off, unplug the pedal and press and hold down the Bypass Switch for two seconds while plugging the pedal back in.


  • The Fathom comes in a Arizona Teal finish with cream and white ink featuring original artwork by Stuart Dooley of a lone one manned sub lost in the chasmic depths searching for the origins of the mysterious Julia.
  • The diecast enclosure’s exact size is 4.77" x 2.6" x 1.39”.
  • Power requirements are 9VDC (100mA minimum).
  • The use of an isolated power supply is recommended for powering all Walrus Audio Pedals. Daisy chain power supplies are not recommended.
  • Power supply not included.

Product Manual