Boss PS-6 Harmonist Guitar Effects Pedal

The Boss PS-6 Harmonist is a compact pitch-shifting effects pedal that consolidates four distinct modes into a single stompbox. Its Harmony mode uses intelligent pitch detection to generate musically correct two- or three-voice harmonies based on a user-selected key and voicing, making it possible for a solo guitarist to produce the sound of multiple players on stage. The Pitch Shifter mode delivers clean, high-quality pitch shifting, while the three-voice Detune mode provides subtle chorus-like thickening that adds depth without overt modulation. The most dramatic feature is Super Bend (S-BEND), which delivers up to four octaves of continuous pitch bending for dramatic dive-bomb and rising effects.

Connectivity options enhance the PS-6's versatility considerably. An expression pedal input accepts compatible pedals like the Boss FV-500L/H or Roland EV-5, allowing guitarists to sweep through pitch ranges in real time with their foot — particularly effective for whammy-style effects and smooth pitch transitions during live performance. The pedal follows the standard Boss compact format with buffered bypass, a single footswitch for on/off control, and intuitive knob-based controls for dialing in settings quickly. Whether used for adding subtle harmony layers to melodic lines or creating wild pitch-bent soundscapes, the PS-6 provides a focused set of pitch tools in a pedalboard-friendly size.