The Keeley ZOMA: stereo reverb and tremolo stompbox
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25.10.2024

The Keeley ZOMA: stereo reverb and tremolo stompbox

Keeley ZOMA
Words by Mixdown staff

Their most high-fidelity pedal to date, with user selectable True Bypass or Silent Buffered Bypass modes.

Robert Keeley has launched the ZOMA, a stereo reverb and tremolo stompbox! The first sound effects built into amplifiers were tremolo and reverb. Keeley’s legendary reverbs are paired with their sultry, vocal-like tremolos to give you an unreal sonic experience.

Keep reading about music, product and industry news here.

Three Reverb and Trem Modes:

We’ve combined the most popular ‘Verbs and Trems into three different pairs. There’s nothing quite like the syrupy smooth sound of our Plate Reverb combined with Harmonic Tremolo.

  • SS – Spring Reverb and Sine Tremolo – Classic black panel amplifiers had spring reverb followed by a sine wave tremolo (at the power tubes)
  • PH – Plate Reverb and Harmonic Tremolo – Smooth reverb with swampy harmonic trem, what’s not to love?
  • PV – Plate Reverb and Pitch Vibrato – Vocal smooth vibrato with other-worldly reverb.
  • Reverb – Sounds and Controls
  • Spring Reverb: tube amp spring reverb – we simulate every detail of that classic vintage reverb sound.
  • Plate Reverb: bright, smooth reverb from a thin vibrating metal plate.
  • Reverb Decay: (Alt feature) Hold REVERB/ALT SWITCH down while adjusting Level knob.
  • Reverb Tone: (Alt feature) Hold REVERB/ALT SWITCH down while adjusting Rate knob.

Zoma Key Features

  • Simple Control Layout: Three large knobs give you maximum control over Reverb Level and Rate and Depth for Tremolo.
  • Easy Access Alt-Controls: Reverb Decay, Reverb Tone, Tremolo Volume.
  • Instant Effect Order Switching: Choose which signal path is right for you. Put your tremolos after the reverb for a vintage correct, black-panel tone.
  • Experience a dirty, swampy tone with harmonic tremolo on top of reverb.
  • True Bypass or Buffered Trails: You chose what sounds and works best in your rig.
  • The Zoma is more than just a pedal – it’s your signature. Reverb and tremolo effects crown any player’s pedalboard. Trust Keeley reverbs for an inspiring “always-on” sound.

Tremolo – Sounds and Controls

  • Sine Wave or Volume Tremolo: Sine wave tremolo simply adjusts the volume of the signal up and down.
  • Harmonic Tremolo: Just like tube-amp harmonic tremolo, your guitar signal is phase-split and filtered, almost like a phaser.
  • Pitch Vibrato: Bends the notes out of tune, you control how far and how fast.
  • Alt-Control-Tremolo Boost Volume: Hold REVERB/ALT footswitch down while adjusting Depth knob.

For more info, keep reading at Keeley.