Octave T-Rex Henretta Engineering TC Electronic

T-Rex T-Rex Quint Machine

T-Rex T-Rex Octavius

TC Electronic TC Electronic Sub'N'Up Mini Octaver

TC Electronic TC Electronic Nether Octaver - Old school Monophonic Octaver

Henretta Engineering Henretta Engineering Purple Octopus Octave Up

TC Electronic TC Electronic Sub'N'Up Octaver