Imagine having your favorite pitch-shifter, octave generator, and analog fuzz all in one pedal. A dual effect designed to inspire musical adventuring. That's what the Octa Psi Transfigurating Fuzz is all about.

The all-analog fuzz and distortion features a powerful transistor design that will make any bass or guitar pickup sound massive. The fast tracking polyphonic pitch-shifter offers a symphony of sounds to explore. Drop tuning, familiar and new pitch-shifting combinations, and even unexpected chorus-inspired sounds just to name a few. Why settle for static Fuzz into Pitch Shift or Pitch Shift into Fuzz settings? With the Octa Psi, you don't have to be binary. On-the-fly commands include switching the effects order, going all-wet, and even True bypass to Buffered Bypass modes. Plug in for Remote use or use a TRS Expression Pedal to control the pitch bending parameters and dive-bomb your heart out.

Check out Keeley’s Octa Psi Transfigurating Fuzz demo:

The Octa Psi delivers mind-blowing sounds and visual impact in a newly designed aluminum enclosure with the quality you would expect from Robert Keeley. Welcome to a new era of Keeley Electronics.

Keeley Octa Psi Features

Polyphonic Pitch Shifter:
- +/- Two Octave Range
- Low latency, fast tracking
- Expression pedal control for pitch bending or dive bombs
- All-Wet or Wet/Dry, switchable on-the-fly
- Up/Down/Dual modes offer octave, harmonized intervals, and modulation effects
- Automatically remembers tilt control… read more voicing of dual or triple part harmonies

Octa Psi Fuzz:
- All Transistor Analog Fuzz and Distortion
- Three-Way Bass Response: Scoop, Punch, or Psi mode for massive undertones
- True-Bypass or Silent Buffered-Bypass, switchable on-the-fly
- Double Tap the Blend Control for effect-order change

WARNING: Cancer and Reproductive Harm - www.p65Warnings.ca.gov.

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