Electro-Harmonix Octave Multiplexer

This octave pedal from EHX was produced briefly in the '70s before being reissued starting in 2001. This version (known as the "Big Box" Multi-plexer) uses a larger chasis which was later changed to a smaller sized pedal along with other EHX models. 

Years of Production: 
1976 - 1977, 2001 - present

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