Here we have the earlier, simpler two knob version of the MXR Bass Ocatve. It sounds huge and tracks super well, right down to below a low-B on a five. Heaps of fun.

Model: MXR Bass Octave
Made: USA, recent model (serial MMI09X130)
Type: octave
Power: standard 9v negative supply or battery (not included)
Switching: true bypass
Equivalent new street price (approx): n/a
Mods: none
Accessories: no box or manual
Condition notes: used, no major marks, very good condition