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Electro-Harmonix Intelligent Harmony Machine Harmonizer/Pitch Shifter Pedal

$241.50

Same price at every authorized dealer. The difference is what comes with it.

0% for 36-48 months available

4.8
Rated 4.8 out of 5
98% Recommend

557 reviews

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Quick Specs

Player-Perfect™ Pro Setup Included

Our techs are all seasoned players, so they dial in every guitar like it’s going into their own rig—perfect intonation, action set exactly right, ready to rip from the first note.

Want it YOUR way? Tell us at checkout: string gauge, action height, whatever you need. We’ll nail it before shipping.

Product Description

Description

 

 

Pictures Are Stock Photos!

 

 

Intelligent Harmony Machine Harmonizer/Pitch Shifter Pedal

 

Instantly create matching harmonies to what you play.

The EHX Intelligent Harmony Machine instantly creates matching harmonies to what you play. It’s like having one – or even two – guitarists jamming with you at the same time and always in perfect sync. The Intelligent Harmony Machine opens a door to the music of great multi-lead guitar bands and multi-part harmonized solos. Plus, its ability to apply harmonies ranging from simple to sophisticated will totally transform what you play. Of course, it also boasts EHX’s renowned impeccable tracking and genuine musical tone.

 

Select your key and the Intelligent Harmony Machines will generate single note, diatonic harmonies* with a huge range of choices that includes both two- and three-part harmonies. Here are your choices:

 

1 6th Down

2 Perfect 4th Down

3 3rd Down

4 3rd Up

5 Perfect 4th Up

6 Perfect 5th Up

7 6th Up

8 7th Up

9 3rd Up + 7th Up

10 3rd Up + 7th Up

11 Perfect 5th Up + Octave Up

These sound so cool that we’ve included them as extra options for the multi-harmony parts (selections 9, 10 and 11) to give you even more choices:

 

9 optional 4th Down + 3rd Up

10 optional 3rd Up + 6th Up

11 optional Octave Down + 5th Up

9 optional 6th Down + 4th Down

10 optional 3rd Down + 3rd Up

11 optional Octave Down + 4th Down

The Intelligent Harmony Machine also performs perfect polyphonic pitch shifts so the pitch shifts you dial up are applied to chords as well as single notes. We’ve even included a Major/Minor switch so you can select whether 2nds and 3rds will be major or minor. Here are the interval selections that are available:

 

1 Doubler

2 Perfect 4th Down

3 3rd Down (minor on major)

4 3rd Up (minor or major)

5 Perfect 4th Up

6 Perfect 5th Up

7 2nd Down (minor or major)

8 2nd Up (minor or major)

9 Octave Down

10 Octave Up

11 Perfect 5th Up + Octave Up

The Intelligent Harmony Machine’s Moment Mode lets you instantly change pitch by simply depressing the pedal’s footswitch. The pitch shift is engaged as long as you hold down the F/S. There’s also an option so you can apply a user-set sweep time between dry and effect. Choose instant pitch changes or control the time it takes for the Intelligent Harmony Machine to sweep up and down between the set interval and the dry signal!

 

EHX Founder, Mike Matthews said: “We designed the Intelligent Harmony Machine for the player who craves maximum power, but in a minimal footprint. You’ll dig its sweet, musical tone and spotless tracking!”

 

*Diatonic harmony means notes within a specific key that relate to each other.

 

Compact harmony generating, pitch-shifting powerhouse

Impeccable tracking and superb musical tone

Two distinct modes: Intelligent Harmony and Polyphonic.

Intelligent Harmony Mode generates diatonic harmonies in a set key based on the single notes you play. Key Selector and #/- switches provide access to all 12 keys.

In Polyphonic Override Mode you can play single notes and chords. The IHM’s 11-position Interval Selector switch lets you select the harmony.

In Momentary Mode the effect is only active when the footswitch is depressed. Choose from instant shifts or set the time it takes the signal to sweep up and down.

Mix control sets the mix between your dry and shifted signals. Dry output adds signal routing and control options and flexibility

Comes equipped with an EHX 9 Volt power supply, can also run on 9 Volt battery

 

Specifications

 

Circuit:

Digital

Bypass:

Buffered Bypass

Audio:

Mono

Power Supply:

9.6VDC-200mA power adapter included (optional 9V battery not included)

Dimensions (in):

4.5 x 2.75 x 2.1

Current Draw:

26mA

Year Released:

2021

UPC:

683274012377

Anatomy of a Tone Machine

Anatomy of a Tone Machine

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The Lowdown

The Lowdown

We get it. Buying a guitar you haven’t played is a big decision. You need to know it’s going to feel right, sound right, and inspire you the second you open the case. We put together the questions we’d be asking if we were in your shoes—the real-world stuff that specs alone can’t answer. If there’s anything else you’re wondering about, just give us a call.

The Moore Guitars Difference

Player-Perfect™ Setups

Every guitar we sell is dialed in by seasoned musicians. We obsess over the details—perfect intonation, immaculate fretwork, and ideal action—so your guitar is ready to rip right out of the case. No exceptions.

Advice From Real Players

Call us and you get a fellow musician, not a script. We'll help you compare neck profiles, talk tone, and find the right guitar for you—even if it's not this one. Our reputation is built on honest conversation.

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Family-owned since 1976, we stand behind everything we sell. That's why we have a 72-Hour Love-It Guarantee. If you're not inspired, send it back on our dime for a full refund. Your satisfaction is our legacy.

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$241.50

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