The Keeley Rotary Stereo is a rotary speaker style modulation pedal, covering two related sounds in one box: a deep, watery chorus and a Leslie-like modulator. It takes its inspiration from rotary speaker cabinets, which Premier Guitar's John Bohlinger describes as imparting "a one-of-a-kind type of chorus effect," and which the pedal aims to recreate faithfully, with "the swirling textures and vintage warmth of those rotary cabinets"1. For players exploring this territory, it sits alongside the wider field of Chorus Pedals.
What it does
The pedal is built around true stereo operation, which Keeley describes as being for "perfect integration in modern rigs"1. That matters if you run a stereo pedalboard or a wet/dry setup, where a rotary effect benefits most from spreading the spinning speaker character across two outputs.
Inside the pedal, Keeley says it has used updated circuits for maximum fidelity, housed in the company's laser cut aluminum case with a new set of circuit boards1. The bypass is switchable between true and buffered bypass on the fly, so you can match it to the rest of your signal chain without tools or internal adjustments1.
What reviewers said
Guitar Pedal X's Stefan Karlsson, reviewing the earlier Stereo Rotary Speaker II in December 2024, saw it as a supposed significant improvement over the Beach Boys "I Get Around" iteration, but noted that it lacks a separate level control. In his words: "It doesn't though have a separate and indepent level control which is needed to counter a very significant volume drop"2. That is worth bearing in mind if your rig runs low on headroom, since a rotary effect that drops volume when engaged can be awkward to level-match.
"Rotary speaker cabinets impart a one-of-a-kind type of chorus effect."
Related pedals
Keeley also makes the Keeley Rotary, a related pedal in the same family.
Videos
Premier Guitar
Keeley Electronics
Mike Hermans
Sources (2)
- Keeley Rotary Stereo, Premier Guitar, 2025-01-16
- Guitar Pedal X, Guitar Pedal X, 2024-12-19









