Keeley 30ms Automatic Double Tracker — Studio‑Style Doubling & Abbey Chamber Reverb in a Pedal
Add Width and Depth to Your Sound
The Keeley 30ms Automatic Double Tracker is a stereo effects pedal designed to deliver studio‑quality doubling effects that make instruments and vocals sound thicker, wider, and richer. Inspired by classic automatic double tracking (ADT) techniques used in legendary studios, this pedal brings professional‑grade doubling and ambience to guitar, bass, keyboards, and even vocals—on stage or in the studio.
Classic Studio Doubling, Anywhere
Automatic double tracking became iconic through techniques developed by engineers like Ken Townsend and John Lennon at Abbey Road Studios, creating the impression of multiple performers playing together for a fuller sound. The Keeley 30ms recreates that magic in a portable stompbox, offering tools for creating unique and expressive double tracked tones without relying on conventional LFO‑based modulation.
Versatile Modes for Rich Textures
Dimension Mode
-
Produces detuned and delayed doubling effects that feel natural and organic
-
Not tied to LFO regularity like typical chorus pedals
-
Create up to two distinct voices for stereo width
-
Works beautifully in mono or stereo setups
Abbey Mode
-
Inspired by synchronized tape decks running in parallel
-
Delivers lush, wide doubling without sounding like a standard chorus
-
Combines tape‑like variations for rich stereo spread
Slapback Mode
-
Classic rockabilly‑style echo with double tracked voices
-
Use with Abbey Verb for experimental textures and rhythmic slapback echo ideas
-
More than just echo—this mode adds dimension and character
Abbey Verb Reverb
The built‑in Abbey‑style chamber reverb evokes the spacious, ambient sound of the famous Studio Two chamber. In mono, the pedal blends this classic reverb with doubling effects for a broader, more immersive tone.
Stereo Double Tracker Pro Mode
Switch to Stereo Double Tracker Pro for full control over your delayed voices:
-
Drop the reverb and focus entirely on precise stereo doubling
-
Each voice can be tuned up to ±30 cents for subtle to dramatic width
-
Delay up to 30 ms between voices for distinct double tracked effects
-
Choose output behavior via internal switches:
Built for Musicians and Producers
The Keeley 30ms Automatic Double Tracker is engineered for players and producers who want studio‑style doubling and ambience without external racks or plugins. Its flexible controls and multiple modes make it a creative powerhouse for shaping wide, professional‑grade soundscapes.
Ideal for:
-
Guitarists, bassists, keyboardists, and vocalists
-
Creating larger‑than‑life stereo tracks live or in the studio
-
Players seeking rich doubling and ambience beyond conventional chorus pedals
-
Musicians using stereo rigs or effects loops
BOOM!
