1970’s vintage Electro-Harmonix Octave Multiplexer.

The Electro-Harmonix deluxe Octave Multiplexer is an analog sub-octave generator that creates a deep bass signal one octave below your input, featuring dual filters (High/Bass) and a SUB switch for tone shaping.

Just cleaned all the pots and switches.

Sounds really amazing with my Les Paul.

Would consider trading for a telecaster

Listed2 months ago
ConditionVery Good (Used)
Very Good items may show a few slight marks or scratches but are fully functional and in overall great shape.Learn more
Brand
Model
  • Deluxe Octave Multiplexer
Categories
Year
  • 1970’s

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Harry's A

Morgan Hill, CA, United States
Joined Reverb:2026

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