Keeley Zoma - Stereo Reverb/Tremolo Pedal.
Reverb and tremolo are the crown jewels of any pedalboard, and the Keeley ZOMA delivers both with uncompromising fidelity. Designed as a professional, always-on ambience tool, ZOMA combines lush stereo reverb with expressive tremolo and vibrato effects to become a true signature pedal. From classic amp-inspired tones to immersive, modern textures, ZOMA offers inspiring depth, movement, and clarity in a refined, easy-to-use format.
Key Features :
- High-fidelity stereo reverb and tremolo pedal
- Simple three-knob control layout for fast, intuitive operation
- Alternate controls for deeper tone shaping
- Switchable effect order (Reverb → Tremolo or Tremolo → Reverb)
- Selectable true bypass or buffered bypass with trails
- Silent switching for professional use
- Designed and manufactured in the USA
Three Reverb & Tremolo Mode Combinations
ZOMA pairs its most popular reverb and modulation effects into three carefully voiced modes:
- SS – Spring Reverb & Sine Tremolo
Classic black-panel amp style, with spring reverb followed by smooth sine-wave tremolo
- PH – Plate Reverb & Harmonic Tremolo
Bright, smooth plate reverb paired with rich, swampy harmonic tremolo
- PV – Plate Reverb & Pitch Vibrato
Lush plate reverb combined with vocal, expressive pitch vibrato
- Reverb Sounds and Controls
- Spring Reverb: Faithful tube-amp-style spring reverb with detailed vintage character
- Plate Reverb: Smooth, bright reverb inspired by classic studio plates
- Reverb Level: Controls overall reverb mix
- Reverb Decay (Alt Control): Hold the Reverb/Alt footswitch while adjusting the Level knob
- Reverb Tone (Alt Control): Hold the Reverb/Alt footswitch while adjusting the Rate knob
- Tremolo and Modulation Sounds
- Sine (Volume) Tremolo: Traditional volume modulation for smooth pulses
- Harmonic Tremolo: Phase-split, filtered tremolo similar to vintage tube amps
- Pitch Vibrato: Smooth pitch modulation for expressive, vocal-like movement
- Rate: Controls tremolo or vibrato speed
- Depth: Controls modulation intensity
- Tremolo Volume Boost (Alt Control): Hold the Reverb/Alt footswitch while adjusting the Depth knob
Design and Build
Housed in Keeley’s proprietary angled aluminum enclosure, ZOMA is built for durability and stage-ready ease of use. Its elegant layout and premium construction reflect Keeley’s commitment to sound quality, reliability, and player-focused design.
The Keeley ZOMA Stereo Reverb & Tremolo is a powerful, refined ambience pedal that brings studio-grade reverb and expressive modulation together in one beautifully designed unit—perfect for players who want their tone to breathe, move, and inspire.
