Electro-Harmonix B9 Organ Machine, (Used)

The Electro-Harmonix B9 Organ Machine is a guitar and keyboard effects pedal designed to transform an instrument’s signal into the sound of a classic electric organ. It offers nine selectable presets, including options such as “Fat & Full,” “Jazz,” “Gospel,” “Classic Rock,” “Bottom End,” “Octaves,” “Cathedral,” “Continental,” and “Bell Organ,” each emulating a different vintage organ or tonewheel-style texture.

The pedal includes controls for shaping the sound: a Dry volume knob adjusts the amount of original signal retained, an Organ volume knob controls the effect level, a Modulation knob sets the speed for rotary, vibrato, tremolo, or chorus effects depending on the preset, and a Click knob adjusts the percussive attack to simulate the key‑click characteristic of traditional organs.

The B9 features an input for your instrument and two outputs — Dry for the unaffected signal and Organ for the effect-mixed output. It operates on a 9 V DC power supply, and the tracking engine is designed to respond accurately to both single notes and chordal passages, providing realistic organ emulation across a range of playing styles.