Harmony & Octave Effects Pedals

Electro-Harmonix XO Micro POG Polyphonic Octave Generator Guitar Effects Pedal

MXR M103 Blue Box Effects Pedal

BOSS SY-300 Guitar Synthesizer

BOSS SY-1000 Guitar Synthesizer and Multi-Effects Processor

BOSS OC-5 Octave Effects Pedal

BOSS SY-1 Synthesizer Effects Pedal

BOSS MO-2 Multi Overtone Guitar Effects Pedal

BOSS SY-200 Synthesizer Effects Pedal

BOSS PS-6 Harmonist Pitch Shifter Guitar Effects Pedal

BOSS EV-1-WL Wireless MIDI Expression Pedal

BOSS XS-100 Poly Shifter Pitch & Octave Effects Pedal

BOSS XS-1 Poly Shifter Pitch and Octave Effects Pedal

MXR MB301 Bass Synth Effects Pedal

Electro-Harmonix BASS9 Bass Machine Effects Pedal

Electro-Harmonix Slammi Plus Polyphonic Pitch Shifter/Harmony Effects Pedal

Electro-Harmonix C9 Organ Machine Guitar Effects Pedal

Behringer Ultra Octaver UO300 3-Mode Octaver Effects Pedal

Roland GR-55 Guitar Synthesizer

Electro-Harmonix HOG 2 Harmonic Octave Generator Guitar Effects Pedal