From Earthquaker Devices:
The Pitch Bay is a three part polyphonic harmonizer and distortion generator in one compact enclosure. It features two voices of adjustable polyphonic pitch shifting, one above the root and one below. Each voice can be adjusted by stepped semitones, from 1 semitone to 12 semitones (one full octave) above and below the root. Each voice (Pitch up, Pitch down and Root) has an adjustable mix control so they can be blended, cut or boosted to your hearts desire. The Pitch Bay also features an adjustable input gain that goes from clean to heavily distorted to unleash your inner hesher. This device has an all analog adjustable gain preamp, all analog signal path for the root, all digital pitch shifting engine and true bypass switching for activation. Each Pitch Bay is made one at a time by hand in the private beach front resort sector of Akron Ohio.
Pitch Up: Selects the upper harmony, 12 semitones starting at 1 above the root.
Pitch Down: Selects the lower harmony, 12 semitones starting at 12 below the root.
Gain: Turn clockwise to increase the gain.
Up: Level control for the upper harmony.
Down: Level control for the lower harmony.
Root: Level control for the root note.
4 5/8? x 2 1/2? x 2.25? with knobs
Our pedals take a standard 9 volt DC power supply with a 2.1mm negative center barrel. We always recommend pedal-specific, transformer-isolated wall-wart power supplies or multiple isolated-output supplies. Pedals will make extra noise if there is ripple or unclean power. Switching-type power supplies, daisy chains and non-pedal specific power supplies do not filter dirty power as well and let through unwanted noise. Do not run at higher voltages! Current draw is 100 mA.
Run before any dirt or boost pedals. Works great on keyboards, bass, vocals, drum machines and just about anything else you can plug in!