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The polyphonic BASS9 Bass Machine transforms a guitar into nine different basses and requires no special pickups, MIDI or instrument modifications. It relies on the same technology powering all EHX 9 Series pedals, like the award winning MEL9® Tape Replay Machine, but features a new algorithm maximized for transposing one to two octaves down with superior dynamics and tracking.



• PRECISION: Pays homage to the iconic Fender P Bass®

• LONGHORN: Emulates the Danelectro® 6-string bass, ideal for baritone type tones

• FRETLESS: Features both electric and standup fretless basses.

• SYNTH: A tribute to the classic Taurus® Synthesizer

• VIRTUAL: Lets the user adjust the bass’s body density and neck length for a variety of bass sounds

• BOWED: Classic bowed bass

• SPLIT BASS: Makes it possible for the guitarist to play bass on the lower strings (all notes below F#3) and chords or melody with the higher strings.

• 3:03: A polyphonic salute to the sought after Roland TB-303® vintage bass synth

• FLIP-FLOP: Inspired by EHX’s Octave Multiplexer, it provides a ’70s style logic driven sub-octave generator that tracks without glitches.



-on/off foot Pedal switch

-Preset Foot pedal Switch

-Dry knob -Effect knob

-Control 1 Knob

-Control 2 Knob

-Mode Knob

-1/4" mono input jack

-1/4" Dry output jack

-1/4" Effects output jack

-DC 9V 100 mA power in jack

-Buffered bypass


for more information:

-call us at 607-272-2602

-text us at 607-592-4135

-email us at

Electro Harmonix Bass9

  • At Ithaca Guitar Works, we understand that sometimes a purchase may not meet your expectations. That's why we offer a hassle-free return or exchange policy within a week of delivery. Simply contact us to initiate the return process and ship the guitar back to us in the same condition it was shipped in. Once we receive the guitar, we will promptly issue a refund for your purchase. Our goal is to ensure you are completely satisfied with your purchase and enjoy playing your new guitar for many years to come.

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