ELECTRO HARMONIX Micro POG Polyphonic Octave Generator
TC ELECTRONIC Mimiq Mini Doubler
TC ELECTRONIC Sub 'n' Up Mini Octaver
TC ELECTRONIC Mimiq Doubler
TC ELECTRONIC Sub 'n' Up Octaver
ELECTRO HARMONIX POG2 Polyphonic Octave Generator
ELECTRO HARMONIX Pitch Fork Polyphonic Pitch Shifter
ELECTRO HARMONIX Nano POG Polyphonic Octave Generator
ELECTRO HARMONIX Soul POG Overdrive / Octave
MXR M288 Bass Octave Deluxe
MXR SF01 Slash Octave Fuzz
MXR M280 Vintage Bass Octave
MXR M287 Sub Octave Bass Fuzz
MXR M267 Octavio Fuzz
TC ELECTRONIC Quintessence Harmony