Meet the BOSS PS-6 harmonist, with four intelligent pitch-shift effects and three-voice harmony in one convenient unit. Among the effect modes are Harmony, Pitch Shifter, and Detune, plus the Super Bend for authentic pedal-bending effects and wild three -- and four -- octave pitch sweeps. You can even control pitch with an optional expression pedal. The harmony function is fast and simple to use, and supports a variety of interval patterns. It's easy to create rich, three-voice harmony: choose a major or minor key, and set SHIFT to 3-VOICE that's it! The PS-6 Harmonist is an unbeatable combination of superior sound quality, ease of use, and powerful pitch effects, all under one hood.

Features 

- Four effect modes in one stompbox: Harmony, Pitch Shifter, Detune, and S-BEND (Super Bend) - Easily create two- or three-voice harmonies with selectable key and voicing - High-quality pitch shifting - Three-voice Detune capability - Super Bend provides up to four octaves of extreme pitch bending - Control pitch via an expression pedal (optional BOSS FV-500L/H or Roland EV-5)

Nominal Input Level: -20 dBu Input Impedance: 1 M ohm Nominal Output Level: -20 dBu Output Impedance: 1 k ohm Recommended Load Impedance: 10 k ohm or greater Power Supply: - DC 9 V: Carbon-zinc battery (9 V, 6F22)  - Alkaline battery (9 V, 6LR61) - AC Adaptor (optional) Current Draw: 45 mA (DC 9 V) * Expected battery life under continuous use:  - Carbon: 2 hours - Alkaline: 8 hours These figures will vary depending on the actual conditions of use. Accessories Included: Owner's Manual, Alkaline battery (9 V, 6LR61) Options: AC Adaptor (PSA series)