Amazon.com: TC Electronic NETHER OCTAVER Classic All-Analog Octave Pedal with 1 or 2 Octaves Below Original for Adding Warm Deep Bottom End : Musical Instruments
tc electronic Nether Octaver – Thomann UK
TC Electronic Nether Octaver | Reverb
Vintage Octave Tones On A Budget | TC Electronic Nether Octaver [The Lowdown] - YouTube
tc electronic Nether Octaver – Thomann United States
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User manual TC Electronic NETHER OCTAVER (English - 4 pages)
NPD | TC Electronics Nether Octaver (OC-2 clone by way of Behringer) : r/basspedals