The Electro-Harmonix Octave Multiplexer is an Electro-Harmonix octave pedal, currently around $150. Close alternatives include the Taurus Bass Pedals and the Boss OC-5. It pairs well with the Ampeg SVT-CL and the Ampeg RB-110.
Electro-Harmonix Octave Multiplexer
Electro-Harmonix · pedal
The Electro-Harmonix Octave Multiplexer is a vintage sub-octave synthesizer pedal from Electro-Harmonix, generating one octave below the input guitar signal to produce bass-like sub-octave tones. The large-box format is the classic vintage Octave Multiplexer enclosure, producing a monophonic sub-octave through analog frequency division. Controls include Sub Bass, Bass, and Upper Bass controls for shaping the sub-octave tone and blend with the original guitar signal.
- octave
- sub
- bass
- analog
- frequency
- tracking
- fat
- vintage
Price updated Aug 27, 2026
Genres the Electro-Harmonix Octave Multiplexer is commonly used in
- Alternative Rock
- Experimental
cited
Inferred from shared tonal signals, not a stated genre tag. - Gospel
cited
Inferred from shared tonal signals, not a stated genre tag.
Amps that pair well with the Electro-Harmonix Octave Multiplexer
Pedals that stack with the Electro-Harmonix Octave Multiplexer
Fulltone OCD
Fulltone
7% matchFulltone OCD leans toward full, and that's a real, usable character to pair with
J. Rockett Archer
pedal
7% matchJ. Rockett Archer leans toward high headroom, and that's a real, usable character to pair with
Empress Echosystem
Empress
5% matchEmpress Echosystem's pristine voice goes after Electro-Harmonix Octave Multiplexer in the signal chain — it's not there to compete with Electro-Harmonix Octave Multiplexer's own octave character — goes in the amp's FX loop (or last, into a clean amp)
Keeley Halo
Keeley
5% matchKeep Keeley Halo after Electro-Harmonix Octave Multiplexer in the signal chain, clear of Electro-Harmonix Octave Multiplexer's own gain stage — goes in the amp's FX loop (or last, into a clean amp)
Cheaper alternatives
TC Electronic Nether Octaver
TC Electronic
66% similarityShared character: tight_tracking, one_octave, signal_chain
Electro-Harmonix Bass Mono Synth
Electro-Harmonix
62% similarityShared character: tight_tracking, bass, vintage_charm
TC Electronic Sub 'N' Up Mini
TC Electronic
94% similaritysimilar tone character
Behringer Octave Divider
Behringer
94% similaritysimilar tone character
TC Electronic SUB N UP
TC Electronic
94% similaritysimilar tone character
Boutique & premium upgrades
Similar charactersee all similar tone character →
Taurus Bass Pedals
Moog
66% similarityShared character: original_circuit, one_octave, analog
Boss OC-5
Boss
96% similaritysimilar tone character
Boss OC-2 Octave
Boss
96% similaritysimilar tone character
Beetronics Whoctahell V2 Low Octave Beeast
Beetronics
95% similaritysimilar tone character
Electro-Harmonix POG
Electro-Harmonix
95% similaritysimilar tone character
Hungry Robot The Monastery Octave Generator
Hungry Robot
94% similaritysimilar tone character
See all alternatives to the Electro-Harmonix Octave Multiplexer (cheaper + boutique) →
Questions people ask
What are good alternatives to the Electro-Harmonix Octave Multiplexer?+
The closest matches in character are the Taurus Bass Pedals, the Boss OC-5, the Boss OC-2 Octave. Budget picks: TC Electronic Nether Octaver, Electro-Harmonix Bass Mono Synth, TC Electronic Sub 'N' Up Mini. Boutique upgrades: Electro-Harmonix Micro POG Polyphonic Octave Generator, Pigtronix MS2 Mothership 2 Analog Synthesizer.
What pairs well with the Electro-Harmonix Octave Multiplexer?+
Strong matches from rig and tone-complementarity evidence: Ampeg SVT-CL, Ampeg RB-110, Fulltone OCD — Into the SVT-CL's growling tube stage, the Octave Multiplexer's sub-octave layer stays defined..
How much does the Electro-Harmonix Octave Multiplexer cost?+
Around $150 (live listing price, updated Aug 27, 2026).