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Electro-Harmonix Intelligent Harmony Machine Harmony and Pitch Shifter Pedal Demo

Polyphonic Harmony Generator and Pitch Shifter with Stereo Outputs, Diatonic Harmonization, 11-position Interval Selector, Momentary Mode, and Dry-through Signal Path

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The Ultimate Harmony Generator

The Electro-Harmonix Intelligent Harmony Machine is the perfect pedal to use when your guitar needs to occupy more space in the mix. This 2-in-1 harmonizer and polyphonic pitch-shifter pedal offers exceptionally smooth tracking for single notes and whole chords in all 12 keys. There are two principle operating modes: Intelligent Harmony Mode and Polyphonic Override Mode. Intelligent Harmony Mode offers up diatonically correct harmonies according to the set key; Polyphonic Override Mode engages a pitch-shifting function akin to Electro-Harmonix's classic Pitch Fork pedal. Each mode offers 11 different harmonization/pitch settings to choose from. Of course, the Intelligent Harmony Machine also includes a Momentary mode with adjustable sweep time. The pedal comes with a mono input with stereo outs and dry-through for creative signal routing. Order your Intelligent Harmony Machine from Sweetwater and expand your guitar tone into new and more versatile realms.

Intelligent Harmony Mode

The most impressive feature on the Intelligent Harmony Machine is its Intelligent Harmony Mode, which delivers diatonic harmonies with no latency. Just select your key and it will provide anything from single note harmonies to complex 2- and 3-part harmonies — all with exceptionally smooth and accurate tracking. It's like having two more guitarists playing along with you in perfect time! Intelligent Harmony Mode is polyphonic, which allows you to dial up harmonies for entire chords as well as leads. There are 11 stellar harmonization options to choose from:

  • 6th down
  • Perfect 4th down
  • 3rd down
  • 3rd up
  • Perfect 4th up
  • Perfect 5th up
  • 6th up
  • 7th up
  • 3rd up + 7th up
  • 3rd up + 7th up
  • Perfect 5th up + Octave up

There are so many amazing harmonizing possibilities that EHX couldn't just stop at 11! They've included six superb extras:

  • 4th down + 3rd up
  • 3rd up + 6th up
  • Octave down + 5th up
  • 6th down + 4th down
  • 3rd down + 3rd up
  • Octave down + 4th down

Polyphonic Override Mode

Intelligent Harmony Machine is much more than an advanced harmonizer pedal. It comes equipped with a polyphonic override switch that locks you into polyphonic pitch shifting reminiscent of the well-loved Pitch Fork pedal. Use Polyphonic Override Mode to transform your guitar into a baritone guitar, a down-tuned riff machine, or even put a virtual "capo" on the fret of your choice. And with the pedal's stereo outputs, Polyphonic Override Mode also lets you create stereo doubling effects from mono! Just pan the dry output to one side and the wet output to the other, and you'll instantly have a huge stereo spread. Polyphonic override mode has 11 pitch-shifting settings to choose from. Additionally, the Major/Minor switch allows you to select whether the seconds and thirds will be major or minor. Here are your options:

  • Doubler
  • Perfect 4th down
  • 3rd down (minor on major)
  • 3rd up (minor or major)
  • Perfect 4th up
  • Perfect 5th up
  • 2nd down (minor or major)
  • 2nd up (minor or major)
  • Octave down
  • Octave up
  • Perfect 5th up + Octave up

Momentary Mode

A pitch-shifting function wouldn't be complete without a momentary option, right? Switch on Momentary Mode and the pitch will shift by a specified interval every time you step on the footswitch. In Momentary Mode, the volume knob controls the sweep time between your dry signal and the effect. Whether you're looking for an instant effect or a slow and steady shifting, Momentary Mode has you covered.

Electro-Harmonix Intelligent Harmony Machine Features:

  • Harmony generation and pitch shifting in one compact pedal
  • Spot-on tracking makes for a convincing sound in any situation
  • Intelligent Harmony Mode delivers diatonic harmonies in a set key
  • Polyphonic Override Mode turns the pedal into a pitch-shifting powerhouse
  • Momentary Mode applies the effect for as long as the footswitch is pressed down
  • Key selector lets you access all 12 keys
  • 11-interval selector switch offers plenty of harmonizing choices
  • Stereo outputs with dry-through provide plenty of useful routing options
  • Runs on 9V DC or optional 9V battery power
  • Buffered bypass

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At Sweetwater, we're so picky that what we call a "demo" is actually better than what most music retailers sell as "new" gear! Our gear hasn't endured hundreds of people a week plunking away at all the keyboards, fumbling through Stairway to Heaven on every guitar or playing with every fader and knob on a mixer or control surface.

What demo means to us is that we've had it out of the box, or maybe it was in a customer's hands for a few days and isn't "factory fresh" as a result. Every demo item we sell has Sweetwater's 2-year Total Confidence Coverage™ warranty, and has been tested and verified up to "new" specs by our factory-authorized technicians to make sure it's in perfect working order before we ship it to you.

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Tech Specs

  • Pedal Type: Harmony, Pitch Shift
  • Analog/Digital: Digital
  • Effects: 17 x Harmony Modes, 11 x Polyphonic Pitch Shift Modes
  • Inputs: 1 x 1/4"
  • Outputs: 1 x 1/4" (main out), 1 x 1/4" (dry out)
  • Bypass Switching: Buffered
  • Features: Momentary Switching Mode
  • Power Source: 9.6V DC power supply (included)
  • Power Usage: 26mA
  • Batteries: 1 x 9V
  • Height: 2.1"
  • Width: 2.75"
  • Depth: 4.5"
  • Manufacturer Part Number: IHM

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Customer Reviews

Write your review
Rated 5/5

Good one!

Never like electro harmonix cuz this pedals looks cheap and the sounds are really basics, anyway even with that this one achieve its purpose, as a detuna or digital capo without any lag, delay or digital sound like the pitch fork, found it very versatile and you can get many tunnings even half steps just like the drop from digitech , plus the advantage of being and harmonizer, you had to dial and play with the knobs to get the sound that you're looking for once you know how to do it it's really easy , I think the bad reviews are from people lazy to dial and spend time playing with the pedal or maybe they're are used to use easy dial pedals , don't know anyway for me works really fine. The cons beside the cheap knobs it's the price 250 for me it's a little bit overpriced but anyway I buy it for my quick use pedalboard. As always Aaron Tremain best sales engineer
Rated 5/5

Works!

New favorite pedal
Rated 5/5

built tough

hav'nt played around with it very much, but it does work and has good funtions
Rated 5/5

Perfect Solution!

I have been long searching for the ideal pedal to work with several songs our our gig set-lists. One set opens with Robert Palmer's Bad Case of Lovin' you and I have never been satisfied with the textures of the many pedals I've tried to match up to the songs riffs and solo. But, with THIS pedal I have finally got the riffs and solo sound down perfectly!! It's also a very convenient size for the 'board. Very nice job EHX.
Rated 5/5

A Permanent Pedal on My Board

I'm so glad I went with this pedal!
Immediately I fell in love with the 6th down feature in the minor scale and then the 3rd and 5th and, now, I can't stop using the Polyphonic setting with the perfect 5th and Oct up (used in a split stereo with a Synth9 using the bass synth and the dry signals going to the B9- brings the organ sounds even more to life!).
I don't understand the reasoning behind EH's choice with the 2nd- when could that ever sound good?!
Now, I've seen folks poopoo the tracking but it's simply because they're intonation is fluctuating on, usually high, strings, thus, the Intelligent pedal is confused at pinpointing the notes that are briefly out-of-tune. Zero regrets!!
It will always have the first spot on my pedal chain.
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