Electro-Harmonix XO Octave Multiplexer


  • High Filter
    low-pass filter, filtering out the high tones?
  • Bass Filter
    high-pass filter, filtering out the low tones?
  • blend
    mixes the clean signal with the effected signal
  • Sub (only on reissues)
    gives the sub-octave more punch



Get down! Generates deep, phat bass tones one octave below the notes you play. Two separate smoothing filters enable you to tailor your sub-octave signal to the exact bass sound you desire, separating the Octave Multiplexer from other octave devices. Run your vocals through it and sound just like Ike Turner. This is a monophonic device and works only on single notes.


myFXDB user reviews

3 reviews, average score of 8 / 10

2016-01-17BlakeInDisguise8/10  No Need for a Bass Guitar, Seriously afraid ill bust my Guitar amp, Stunning Deep tone.Not great with chords and sounds more like single notes anyway, Sometimes produces a odd waffling buzz with a sustained note.
2015-04-10lbanda7.5/10  ......
2013-09-08mirosol8.5/10  Sounds exactly like the big box reissue. Great....

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fx pedal stompbox stomp box guitar effects pedal lowpass lopass lo-pass lp lpf low-pass filter filter eq/excite/filter hpf hipass hi-pass highpass hp high-pass filter pitch/octave octavers octave lower octave 1 octave lower 1 octave down octaver frequency
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