EarthQuaker Devices Pitch Bay

The EarthQuaker Devices Pitch Bay is a three-part polyphonic harmonizer and overdrive in a compact pedal. It takes your note, keeps an analog copy of it, and adds two pitch-shifted voices on top: one tuned above the root and one below, each adjustable in semitones. A gain control runs the whole thing from clean to heavily distorted, so it works as a subtle harmony tool or a full-on harmonized distortion box¹².

EarthQuaker Devices positions it as a sound-shaping tool with a wide range. The maker describes everything from "rumbling sub-octaves, dissonant tone clusters, soaring octave-up lead sounds, to ripping NWOBHM lead guitar harmonies"¹. The Pitch Bay is no longer in production, so it is a secondhand buy today¹.

What it does and how it works

The Pitch Bay generates three voices at once. The root voice is your original note, and EarthQuaker keeps it all-analog through the mixer section¹. The other two voices are produced by a digital pitch shifting engine: as Premier Guitar put it, "While the root-note signal moves through an all-analog signal path, the two octave signals are digitally processed"³. Each voice has its own level control that can be cut or boosted, so you can dial a harmony far back in the mix or mute the root entirely and hear only the shifted notes⁶.

The two harmonizers are labeled Pitch Up and Pitch Down. Each is tunable in semitones from one octave below the root to one octave above, in stepped positions from 1 to 12 semitones¹⁷. Premier Guitar's reviewer found the two pitch knobs also sweep continuously, covering "all 12 semitones and the microtones in between," which opens up detuned and dissonant intervals that stepped controls would skip³.

Because the pitch shifting is polyphonic, chords track as well as single notes, which is what separates a harmonizer like this from a simple octave pedal that only doubles or halves a note¹².

Controls

The pedal has six knobs total, mono in and out, and a single true-bypass stomp switch¹⁵. The enclosure carries one of EarthQuaker's painted designs, a sci-fi rocket ship in purple and yellow⁵.

The gain stage is the part that makes the Pitch Bay more than a pitch shifter. Guitar World described it at launch as "an adjustable input gain that goes from clean to heavily distorted," so the harmonies can stay pristine or get pushed into harmonized fuzz territory². For players who want the pitch side without the drive, EarthQuaker's line also includes the Arpanoid V2 arpeggiator and the Bit Commander V2, which stack octaves in a different way.

Where it came from

The Pitch Bay comes from EarthQuaker Devices³. It is built as a three-voice machine: a pitch-up voice adjustable from 1 to 12 semitones above the root, a pitch-down voice adjustable from 1 to 12 semitones below it, and the root itself on an all-analog dry path⁷. The two top and left-most knobs give sweepable pitch adjustment covering all 12 semitones and the microtones in between, dedicated to the octave below the root³. EarthQuaker Devices describes the range as "everything from rumbling sub-octaves, dissonant tone clusters, soaring octave-up lead sounds, to ripping NWOBHM lead guitar harmonies"¹. The enclosure carries one of the maker's signature artful paintings, a sci-fi rocket ship in purple and yellow⁵.

What reviewers said

Premier Guitar's review was positive on both the practical and experimental sides, calling it³:

The same reviewer noted it "sounds fantastic with other effects," meaning it holds up in a chain rather than needing to sit last³. Bass Gear Magazine reviewed it alongside the Hoof and Reaper, confirming the $225 price and the 9.4 oz weight⁴. Delicious Audio's write-up highlighted the six-knob layout and the rocket ship artwork as typical of EarthQuaker's presentation⁵.

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