Pricing and availability
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Average Price: $221
Standard/Professional
$100
$301+
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Price History
Based on price data from 7 merchants for "Electro-Harmonix Intelligent Harmony Machine". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.
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Description
Unleash your creative prowess with the Electro-Harmonix Intelligent Harmony Machine. This innovative pedal is a game-changer for guitarists and bassists, offering an unparalleled ability to generate harmonies and pitch shifts as you play. It's like having additional musicians jamming with you in perfect sync, creating an immersive musical experience that expands your tonal palette.
The Intelligent Harmony Machine generates harmonies ranging from simple to complex. In the Intelligent Harmony mode, you can select your key and watch as the pedal produces single note, two-, or three-part harmonies in real time, delivering a lush, full sound. The pedal also features a polyphonic pitch-shifting function, turning it into a pitch-shifting powerhouse in the Polyphonic Override mode.
Enjoy the flexibility of the pedal's stereo outputs, allowing you to send the dry signal to one amp and the effected signal to another. The easy-to-use key selector and interval selector offer a wide array of harmonizing choices. Crafted with premium components and housed in a compact, rugged chassis, the Intelligent Harmony Machine guarantees reliable performance under harsh conditions.
Key Features: - Generates harmonies and pitch shifts in real time. - Two distinct operating modes: Intelligent Harmony and Polyphonic Override. - 11-interval selector switch for a wide range of harmonizing choices. - Stereo outputs with dry-through for flexible signal routing. - Momentary mode applies the effect only when the footswitch is pressed. - Key selector provides access to all 12 keys. - Rugged construction built to withstand the rigors of the road. - Powered by a 9V battery or optional EHX 9.6DC 200 power supply. - Impeccable tracking and superb musical tone.
Owner's manual
Electro-Harmonix Intelligent Harmony Machine User ManualProduct 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" |
FAQs
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What are the main effects available on the Electro-Harmonix Intelligent Harmony Machine?
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The Electro-Harmonix Intelligent Harmony Machine offers 17 harmony modes and 11 polyphonic pitch shift modes, allowing for a wide range of creative possibilities in your sound.
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Can the Electro-Harmonix Intelligent Harmony Machine be used with a bass guitar?
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Yes, the Electro-Harmonix Intelligent Harmony Machine can be used with a bass guitar, providing harmonies and pitch shifts that complement lower frequencies effectively.
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Does the Electro-Harmonix Intelligent Harmony Machine require a specific power supply?
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The Electro-Harmonix Intelligent Harmony Machine requires a 9.6V DC power supply, which is included with the pedal, ensuring it operates correctly without needing additional purchases.
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How does the momentary switching mode work on the Electro-Harmonix Intelligent Harmony Machine?
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The momentary switching mode allows you to engage the effect only while holding down the footswitch, providing dynamic control over when harmonies and pitch shifts are applied during performance.
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Is the Electro-Harmonix Intelligent Harmony Machine suitable for live performances?
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Yes, with its buffered bypass switching and versatile harmony and pitch shift options, the Electro-Harmonix Intelligent Harmony Machine is well-suited for live performances, offering reliable sound quality and flexibility.
Videos
EHX
Electro-Harmonix Intelligent Harmony Machine
Reviews
PROS
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Instant dual/triple harmony lead lines possible
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Polyphonic pitch shifting for varied guitar sounds
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Responsive, rarely misinterprets note height or interval
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Poly Overide mode offers additional functionality
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Tracks well with no noticeable latency
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Versatile: works well with chords and single notes
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Can split signal into stereo for immersive sound
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Durable and road-ready build quality
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Useful for practicing in any key
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Encourages precise bending with immediate feedback
CONS
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Requires some music theory knowledge for best use
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Settings difficult to adjust without being close to the pedal
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May sound monotonous in non-experimental music contexts
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Perceived as having a digital sound quality by some
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Not a drop tuner; limited in semitone adjustments
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Some units may have quality control issues
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High price point compared to similar pedals
Owner Insights
We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Electro-Harmonix Intelligent Harmony Machine.
Features and functionality
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The poly mode algorithm is identical to the EHX Pitch Fork, useful for those considering switching between the two pedals.
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The footswitch is placed higher on the unit to accommodate a 9V battery, similar to other EHX battery-powered pedals.
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In Poly Override mode with the MAJ/MIN switch on MIN and interval at position 7, the IHM detunes a half-step, offering a semi-tone drop.
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The IHM offers extensive harmony options but lacks independent volume controls for pitch shifts, unlike the Pitch Fork+.
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The EHX Intelligent Harmony Machine can pitch shift a low B to D, essentially acting as a capo for bassists playing with a guitar in D tuning.
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Comparisons
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The Intelligent Harmony Machine is compared to BOSS PS-6 and Quintessence, with users noting subtle differences in sound and functionality.
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Owners with Digitech Whammy and Behringer Harmonist mention this pedal as a potential compact alternative for pedalboards.
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Meris Hedra provides three harmonies from -2 to +2 octaves and independent delay times, offering an alternative with more flexibility.
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Users with other pitch shifters like the BOSS PS-6 and Bass Whammy consider replacing them with this EHX pedal for its capo functionality.
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User experience
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Some users note the lack of an expression pedal as a limitation, affecting performance flexibility compared to other harmonizer pedals.
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Critic Reviews
Based on 0 Reviews and 0 Ratings
Artist usage
Add artistSee article where Billy and Molly Tuttle provide gear details: https://www.premierguitar.com/artists/guitarists/billy-strings-and-molly-tuttle
Album Usage
The Electro-Harmonix Intelligent Harmony Machine has been featured on the following albums:
Genre Usage
Based on how artists on Equipboard use this gear, it is most commonly found in the following genres.
Used With
Based on how musicians on Equipboard use Electro-Harmonix Intelligent Harmony Machine, it is most commonly used with the following gear.
Similar
Add recommendation1 alternative for Electro-Harmonix Intelligent Harmony Machine, curated by the Equipboard community.
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