Amazon.com: TC Electronic SUB 'N' UP MINI OCTAVER Compact Version of Hugely Popular Sub 'N' Up Octaver with Advanced Polyponic Octave Engine and TonePrint-Enabled Technology for Easy Custom Effects : Musical Instruments
EarthQuaker Devices Tentacle V2 Analog Octave Up Pedal - Vintage King
Henretta Engineering Purple Octopus Octave Up Effects Pedal Used