Description
The Keeley Monterey packs a whole rack of psychedelic-era effects into a single stompbox, reimagined with modern reliability. Rather than chasing one vintage tone, it stacks a thick fuzz, a swirling rotary speaker sim, a classic vibe, and a harmonic wah into two footswitchable channels that combine for five distinct voices — from glassy modulation to saturated, alien fuzz.
The Harmonic Wah section is where Keeley gets inventive: it works as a cocked/fixed wah, an auto wah, a harmonic tremolo-wah hybrid, or a fully sweepable wah once you plug an expression pedal into the rear EXP jack. That same expression input also lets you ride the Rate on the Rotary and Vibe modes in real time, turning a static setting into something you can shape on the fly mid-song.
For builders who like to experiment with signal order, there’s a DIP switch hidden under the bottom plate that lets you flip the routing of the Fuzz and Modulation sections. Run fuzz into modulation for classic saturated swirl, or modulation into fuzz for thicker, weirder, more chaotic textures — both work, and both open up tonal territory most single-effect pedals can’t touch.
- Vintage fuzz, rotary speaker, vibe, and harmonic/auto wah in one enclosure
- Octave up and octave down voicing
- Two channels configurable into five distinct sounds
- Rear EXP input controls Rotary/Vibe rate or Harmonic Wah frequency
- Internal DIP switch reorders Fuzz and Modulation stages
- Compact footprint: 4.3 x 3.7 x 2 inches
Powers from a standard 9V DC, negative tip, 100mA adapter — any BOSS, Ibanez, or Voodoo Lab supply will do the job.







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