SKU: 37714857392

Electro-Harmonix Intelligent Harmony Machine Harmonizer / Pitch Shifter

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Description

Electro-Harmonix Intelligent Harmony Machine Harmonizer / Pitch ShifterMaker: Electro Harmonix Model: Intelligent Harmony Machine Condition: New Description: The EHX Intelligent Harmony Machine instantly creates matching harmonies to what you play. Its 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

Maker: Electro-Harmonix

Model: Intelligent Harmony Machine

Condition: New

 

Description:

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

      Shipping Notes
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      Exchange/Return Notes
      • We offer a 30-day return/exchange service after receiving.
      • Final sale items are not eligible for returns or exchanges.
      • To process your return/exchange, please contact us at [email protected]
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      SKU: 37714857392

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      4.5 ★★★★★
      Based on 30 reviews
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      S
      Verified Purchase
      Solennyperez
      Bozeman, US
      ★★★★★ 5
      Exelente
      Color: 6638: Gold strap & Blue dial
      Ha salido muy bueno
      WAS THIS REVIEW HELPFUL?YesReportShare
      Reviewed in the United States on April 8, 2026
      P
      Verified Purchase
      @photobrow
      Lowell, US
      ★★★★★ 5
      Compared to g-shock?
      Color: Black/Yellow
      Firstly random public reviews can be comical…”it’s has a battery, terrible, One star” or “I don’t like yellow, one star” omg peoples do better. I’ll review this while comparing to an older style of g-shock from the same era. I’ll start by saying this timex rocks, for me in my mid 50’s it’s so retro and nastalgic, brings back memories, I may have even owned this model back in the day. What’s great about it- the display, larger digits than the typical g-shock and they are super crisp, clear and easy to read. The indiglo is awesome. This is the most accurate quartz watch I have aside from the atomic g-shocks that adjust themselves daily. I prefer a chunky watch and the g-shocks do a better job in that department. i feel this watch is rugged, but I’d still give the nod to g-shock in this department. 200M water resistance is the gold standard and this watch has it which I love for peace of mind for any water based activities. This is a 5 star watch at a great price. I still love some aspects of a g-shock better but its just preference.
      WAS THIS REVIEW HELPFUL?YesReportShare
      Reviewed in the United States on February 11, 2026
      T
      Verified Purchase
      Tanya
      Belleville, US
      ★★★★★ 5
      Everybody loved the high-tech style and amazing functionality
      Color: Black/Yellow
      I'm not a Timex fanboy, and I've had my fair share of problems with the Expedition line, so this review is my honest opinion as a man who's worn Armitrons and Timexes since I was 10. I remember in 1992 when the Timex Ironman Triathlon with Indiglo was first launched - My older brother got one, then me and my neighbor friends. Everybody loved the high-tech style and amazing functionality. Even Bill Clinton was rock'n this watch, for those who don't remember. Quite simply, this is the perfect watch at a great price, in my opinion. Perfect as a gift for any man, and I think the original black/olive drab/yellow coloration is still the coolest. In this day and age of smartphones, it still pays to have this watch. The alarm is less annoying sounding than a cellphone, and doesn't wake up the entire house. To turn it off, just tap the watch, no more reaching for the phone or alarm clock. Timer comes in handy for anything; timing my kids' timeouts when they get in trouble, 15 minutes room clean-up times, etc. Chrono is fun for anything you wanna use a stop-watch for. I set the second time zone for Vietnam time. It really is a million times easier to use this watch for all of its functions than reaching for a smartphone or alarm clock, etc. If you;ve been relying on your phone for a few years as a watch/chronograph/timer/alarm - you'll be so glad you finally got a watch like this. I've never tried a smart-watch, however I feel those are not as necessary,durable or practical as a real watch. Other Timex watches I've used were freakin' trash - couldn't throw em away fast enough. Might as well open the box while holding it over a trash can, so the watch can fall right in when you open the box. That's my experience with the Expedition line-up. Back to this watch: The only thing I wish this watch could do is measure activity thermogenesis (calories expended throught the day) or work as a pedometer, which some smart-watches and other devices can do. I also cannott decide if I like this new, slightly larger, heavier/thicker design of the Ironman Triathlon over the 1990s design. The 90s models styling was "tight to death'. Star-split buttons were seperated. The mode button was yellow. Overall more compact and bi-cultural;by that I mean it looked great as an athletic watch or a politician, business man wathc. This new model is bigger, better ingress/shock resistance, and more of an athletic style over all, and is a little less colorful. I almost went with the G-shocks, but they still just look like crap and are waay to expensive. Sure, they have some better features, can survive WWIII, but I am a traveler. I need a watch that can work in the dark in any environment. The G-shocks are often using some kind of solar battery crap and rely on cathing a signal from an American automic clock in Colorado - good luck with that while your in Thailand on vacation.
      WAS THIS REVIEW HELPFUL?YesReportShare
      Reviewed in the United States on December 31, 2016
      B
      Verified Purchase
      B Lehman
      Whiting, US
      ★★★★★ 5
      Great Product. Easy to use.
      Color: Black
      This is the third running watch I've had and it's my first Timex. I've owned to Casio's before (one being a g-shock), but after finding my g-shock to bulky and cluttered, and loosing my other Casio I picked up from Walmart, I decided to look around to find a new durable running watch. I run cross country and track so going from a generic stopwatch to a 30-lap chrono watch has been sweet. The lap timer is easy to use and the display is big enough to take a glance and see my split and total time side by side. The recall feature works perfectly and you even have some room to adjust the settings to configure your lap display how you like it. My favorite thing about this Timex, is its ease of use. The only time I've had to look at a manual is when I first got the watch. The display updates as you go through the various modes to show you what the new buttons mean so there is never a question on how to set the time or recall your laps. This watch is extremely durable. It has already taken a few shots and I've swam with it on several times. The screen and body have held up nicely and I don't foresee any problems with them in the future. The strap is great also. I really like the notch that keeps the excess strap in place. The countdown timer and the alarm both work as expected. The timer has some different settings and is easy to set up. My only disappointment with the timer was that you can't set different intervals. Like if you want to run for five minutes and walk for two your going to have to invest a little more for a watch that allows different intervals. The alarm works well too, and the beeping successfully wakes me up in the morning, but I'm not a heavy sleeper so some may find it too quiet. Overall this watch is durable, easy to use, and can track splits really well. The watch is a little bulky if you are used to a more minimalist watch but for me the weight was perfect, and for the price you can't go wrong with this watch.
      WAS THIS REVIEW HELPFUL?YesReportShare
      Reviewed in the United States on June 5, 2013
      H
      Verified Purchase
      Hathi
      West Palm Beach, US
      ★★★★★ 4
      Trusted Brand Delivers Again
      Color: Black/Yellow
      I had my previous Timex watch for 30+ years and it finally died after getting wet, so I replaced it with the closest model I could find to it. PROS: - Has the basic functions I needed: Clock, 2nd Time Zone Clock, IndiGlo backlighting, Alarm, Timer, Stopwatch. Allows me to leave phone at home and just take this out. - Easy to set time/date/etc. Can turn alarm on / off easily. Buttons for timer/mode switching work fine. - Clear display so easy to read. The backlighting makes this even better. - Can swap out the band (I put mine on a Chums' "The Band" that I like) if the new one takes 19mm pins. CONS: - The only thing I dislike is it is heavier than my old Timex. A little bulkier too. Not annoyingly so but noticeable enough for me to comment on it here.
      WAS THIS REVIEW HELPFUL?YesReportShare
      Reviewed in the United States on October 20, 2025

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