HOG Harmonic Octave Generator/Synthesizer - DISCONTINUED

Indulge your senses! The award winning HOG (Harmonic Octave Generator) is a totally polyphonic guitar synthesizer offering complete control of up to 10 interval pitches. NO glitches and NO special pickup needed. Generate extreme sub bass to powerful multi-octave chords. Convert your 6 string into a 12 string, create a realistic B3 organ. Amazing on guitar but works well with any instrument.

Click here to view a Sample Templates

Featured Videos
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From the Blog
Posted 5/20/2013

Videosongster, Bayu Ardianto, checks in from Indonesia with his latest offering.  The band’s (Lola Bangs the Drum)  message is that love isn’t logical. Bayu says he used a lot of EHX effects in this production, as follows:

HOG Harmonic Octave Generator: pianica, synthesizer
Stereo Electric Mistress Flanger: synthesizer
44 Magnum Power Amp: bass, Rhodes, guitar cabinet
Stereo Talking Machine Vocal Formant Filter: electric guitar
Deluxe Memory Man Echo/Chorus/Vibrato: electric guitar
Ring Thing Single Sidebande Modulator: electric guitar
LPB-1 Linear Power Booster: electric guitar
LPB-1 electric guitar
Big Muff Pi: electric guitar

Posted 8/14/2012

Scott Fernandez plays an original composition of his 12-String Bass with added ambience provided by the EHX Freeze and HOG.


Posted 3/1/2012

Here is a quick tip on how to get a realistic, chimey 12-string guitar sound using the EHX HOG Harmonic Octave Generator. Using the expression pedal in step-bend mode, slightly detune the HOG. This leaves your original guitar signal unaltered while adding a more realistic 12-string sound to the HOG. Add some delay using the Stereo Memory Man w/Hazarai placed after the HOG for ambiance and you’ll have all the jingle jangle you need!

Below is a demo video:

Previous Tone Tips posts:

Stay tuned, more Tone Tips posts coming soon!

Posted 1/27/2012

Effectologist extraordinaire, Bill Ruppert, defies the impossible to re-create the theme from the movie Blade Runner. Using “only” his Electro-Harmonix pedals and unbridled imagination, the maestro delivers an auditory tour-de-force.

Please note: Bill will be in the EHX Forums to discuss his sounds, settings, and process. We hope you join us there.

Previous episodes:

Stay tuned, more Effectology episodes coming soon!

Posted 12/19/2011

“The envelope, please.” The multi-talented Bayu Ardianto captures a first-place win with his latest VideoSong, Inveitability, in the IndieFone Film Festival. Bayu relied on EHX pedals to help him score.

The pedals used in this VideoSong are:

1. Double Muff (electric guitar)
2. Cathedral (electric guitar)
3. Stereo Electric Mistress (electric guitar)
4. Neo Mistress (electric guitar)
5. Ring Thing (electric guitar)
6. Voice Box (pianica)
7. HOG (synthesizer)
8. LPB-1 (electric guitar)
9. Metal Muff (electric guitar)

Congratulations, Bayu!

Posted 12/16/2011

Linkin Park’s, Mike Shinoda, takes us into the studio to share an inside look at some of his favorite EHX gear.

And congratulations to the band! They just received a Union Nations Global Leadership Award for their work supporting humanitarian causes. 

For more on Mike and Linkin Park, click here http://www.linkinpark.com/main

For more on the band’s latest humanitarian initiative, click here http://www.powertheworld.org/

Posted 11/17/2011

Bayu Ardianto checks in with EHX from Indonesia. This latest VideoSong from his group, Lola Bangs The Drums, is entitled Kamu, Kamu, Kamu (English translation: You, You, You).

Bayu told Mike Matthews that he used the following Electro-Harmonix gear while producing this VideoSong:

1. Voice Box [pianica]
2. Stereo Talking Machine [wah, electric guitar]
3. Small Stone [electric guitar]
4. Stereo Memory Man with Hazarai [electric guitar]
5. Deluxe Memory Man [rhodes]
6. Neo Mistress [keyboard synthesizer, organ emulation]
7. HOG [keyboard synthesizer, organ emulation]

Previous Bayu videos:

Stay tuned, more Bayu videos coming soon!

Posted 10/7/2011

BuckoFutreal creates a real nice video song and uses an electric dulcimer through an EHX HOG for bass. Hope you enjoy, “The Road from Thursday.”

Posted 7/25/2011

Get ready to RUMBLE! Short demo of the EHX HOG with bass guitar.

Posted 7/6/2011

Bill Ruppert is a Jedi Master at the art of creating soundscapes that are truly not of this world. Travel along with Bill, into the astral plane, as he explores the outer limits of “Paranormal Guitar Effects.” In this latest edition of Effectology, Bill once again uses “only” his guitar and Electro-Harmonix effects pedals to conjure aliens, poltergeists and more!

Please note: Bill will be in the EHX Forums to discuss his sounds, settings, and process. We hope you join us there.

Previous episodes:

Stay tuned, more Effectology episodes coming soon!

Posted 5/17/2011

It’s been raining like crazy in NYC with more on the way…  so we thought we’d post this version of Sunny, featuring Koliok jamming through an EHX HOG Harmonic Octave Generator.

Posted 5/10/2011

All the way from Indonesia!  LOLA BANGS THE DRUMS as this Electro-Harmonix clad trio led by the talented Bayu Ardianto use seven EHX pedals to create a monster groove. Check out the dead-on Leslie from the HOG and POG 2 integrated with the Stereo Pulsar. Natalia Pratiwi provides super-cool vocals with backing from the Voice Box while Dika Charles Dickson’s drumming is always in the pocket.

Electro-Harmonix pedals used in this Video Song:

1. Small Stone (acoustic guitar)

2. Voice Box (vocal)

3. Deluxe Memory Man (vocals)

4. Stereo Memory Man w/ Hazarai (vocals)

5. POG2 (synthesizer)

6. Stereo Pulsar (synthesizer)

7. HOG (acoustic guitar)

Posted 2/14/2011

Through the magic of Bill Ruppert, Mr. Effectology, and Electro-Harmonix, take a mini-vacation and relax to the soothing sounds of the ocean and a steel drum band!! Once again, Bill Ruppert shows you how to achieve more than you ever thought possible with “just” a guitar, EHX effects pedals and a large dose of creativity.

Please note: Bill will be in the EHX Forums to discuss his sounds, settings, and process. We hope you join us there.

Previous episodes:

Stay tuned, more Effectology episodes coming soon!

Posted 10/29/2010

Posted 9/28/2010

Posted 7/15/2010

Anna Bulbrook, from The Airborne Toxic Event, integrates her unique viola talent with the Electro-Harmonix HOG. Slithering harmonic registers and intervals meld with enveloped layers to create a sonic foundation that is both mesmerizing and totally transitional from beginning to end.

Posted 7/13/2010

This is a text copy of a letter written to Mike Matthews by an enthusiastic fan from Keiv-Ukraine.

Hello, dear Mr. Matthews!
My name is Enno. I am 27 years old. I live in Kiev, the country - Ukraine.
I play guitar in electro-rock band. For 2 years I use only your effect pedals.

From the first time I realized that the sound of Electro-Harmonix - is my sound, with whom I and my music will grow and develop. This weekend I bought a HOG pedal. Random. I went into the store and could not resist this pedal. On this day, I just got paid. So, I took all the money that I had and bought a HOG! On the way from the store to home I became upset, because completely no money left for the next month. But! When I turned on the HOG at home, I totally forgot about the money! I felt such joy as a child! Thats why I writing you this naive letter, like to Santa Claus! grin Only emotions without etiquette!
Thank you for your work! Thank you for all the guitarists in the world music that I grew up!
Music - an integral part of my heart, and Electro-Harmonix - an integral part of music.
This means that you are also a part of my heart and running through my blood!
As soon as I could afford it, I immediately bought English Muff’n, then Echo #1, and now the HOG. I am sure they will be with me throughout my life. When I recovering from the financial impact by HOG, I will buy foot controller for it ... I think in winter grin

Now I tell everyone Kiev musicians about the magnificence of HOG pedal. It turned out that none of my friends Ukrainian guitarists do not use HOG (should be noted that I know a lot of them and I live in the capital). And generally in Ukraine they know little about Electro-Harmonix and looks on your pedals as a sort of exotic pieces. I can not understand why this happens ...
In Ukraine, there is only one normal store, where you can buy EHX units. The most that I can do - is to tell about Electro-Harmoniks as many people as I can. That’s what I’m doing. I hope so, I take little part in your great work!

So! I sincerely thank you for what you have! What you do not given up! What continues to make for all of us as old and new devises! I wish you good health! And keep rocking! The world needs you and your team!

Greetings from Ukraine!
Sincerely yours, Enno Koyalo.

P.S. I think that this letter is unlikely to reach Mike Matthews, but sent it anyway! I think that Mr. Matthews would be pleased to read it - is unlikely to come from the Ukraine a lot of letters. Thanks to the whole Electro-Harmonix team! You are cool!

Dear Enno,

All of us at Electro-Harmonix, New York city are so happy to hear from you and read your letter.

We work our asses off to try and bring out the most interesting sound effects…. So when we hear of a very satisfied customer and fan,  it is gratifying and motivates us more to keep on working.

Rock & Roll… And hope you get that hit real soon,

Mike Matthews

Posted 5/27/2010

Posted 4/28/2010

Posted 2/8/2010

In Effectology 12, pedal wizard Bill Ruppert reproduces the sounds of the Irish Uilleann pipes with a realistic and haunting backdrop. Ethereal Harmonic Drones, giant “Field Drums” and the elegant strings are crafted with the perfect integration of his guitar combined with quality Electro-Harmonix effects.

The “Spectral gate” on the HOG combined with the Big Muff Pi provides a harmonic filter that focused the beautiful string tone.The Cathedral Stereo Reverb preserves the reality with the perfect spatial ambience.

Please note: Bill will be in the EHX Forums to discuss his sounds, settings, and process. We hope you join us there.

Previous episodes:

Stay tuned, more Effectology episodes coming soon!

Posted 10/19/2009

Welcome to the fifth installment of EHX Effectology. In today’s episode Genius sound producer Bill Ruppert has produced another amazing “Effectology” sound clip. Using only Electro-Harmonix pedals and NO synthesizers, Bill recreated of Kraftwerks’s classic “Autobahn.”

Please note: Bill will be in the EHX Forums to discuss his sounds, settings, and process. We hope you join us there.

Previous episodes:

Stay tuned, more Effectology episodes coming soon!

Posted 7/14/2009
Welcome to the fourth installment of EHX Effectology. In today's episode Bill Ruppert transforms his electric guitar into a classic Hammond B-3 organ (pedals used: HOG and Soul Preacher). For more episodes from the Effectology series, see the links beneath the video.

Please note: Bill will be in the EHX Forums to discuss his sounds, settings, and process. We hope you join us there.

Previous episodes:

Stay tuned, more Effectology episodes coming soon!

Posted 7/6/2009
Enjoy Deerhoof, live in the studio, covering a song from an obscure 1967 movie soundtrack. The performance is from New, Improved, LIVE, a video series by The Bay Bridged (San Francisco Bay Area independent music blog) and New, Improved Recording (Oakland recording studio).

The video starts with Deerhoof guitarrists John Dieterich (plaid shirt) and Ed Rodriguez (green shirt) playing thier HOG and Micro POG (respetively), followed by a look at the studio. The song itself kicks in at about 2:10.

Ed tells us: "The EHX Micro POG has gotten the 'what pedal are you using?' question more than anything else I have ever owned. It's simple to use with great sound quality. It tracks better than any other pedal I've ever used, the Boss PS-5, Digitech Whammy Pedals, everything."

Ed continues: "John (Dieterich) uses the HOG as well and we were both overwhelmed at the possibilities it opened up. It's rare to find pedals you know will always have a place in your set up. In the video of 'Let's Dance the Jet' John opens the song with the HOG making jet sounds and I come in on the melody using the Micro POG and the Holy Grail Plus. Enjoy!"

Be sure to catch Deerhoof on tour. For photos from the session, see the New, Improved, LIVE Facebook album.

Posted 6/29/2009
Welcome to the third installment of the EHX Effectology series. Today Bill Ruppert presents "Cello Concerto for Guitar and Effect Pedals" (pedals used: for the 'cello' it's just a HOG and Holiest Grail, and for the backing pads Bill also uses a Black Finger, POG, Stereo Polychorus, and Stereo Memory Man with Hazarai).

I especially liked how Bill used the HOG to pitch-shift his guitar down into the register of a cello. That plus the slow attack makes this one especially fun to try, and quite easy to reproduce.

Please note: Bill will be in the EHX Forums to discuss his sounds, settings, and process. We hope you join us there.

Previous episodes:

Stay tuned, more Effectology episodes coming soon!

Posted 6/2/2009
Welcome to Electro-Harmonix's new "Effectology" series. Over the next several months we're going to play a remarkable collection of EHX-assisted sounds, and explain how they were made.

In the first episode, effect pedal wizard and Chicago studio musician Bill Ruppert transforms his regular electric guitar into a blues harmonica (pedals used: HOG, Micro Synthesizer, Wiggler, Holiest Grail).

Please note: Bill will also be in the EHX Forums to discuss his sounds, settings, and process. We hope you join us there.

The EHX Effectology series was originally inspired by Bill's recreation of the synth intro to The Who's "Won't Get Fooled Again" (see here). Stay tuned, more Effectology episodes coming soon!

Posted 5/11/2009
Sam Ash recently posted this clip of Dan Miller demonstrating the HOG from inside our NAMM show booth. It's a neat quick show of the range of deep synth sounds you can get from the HOG.

Posted 5/6/2009
Cheers to Jack Conte for "This Disaster," his latest 'videosong' -- I spotted a HOG, a Big Muff Pi, and a Tube Zipper (and for EHX shirts, check out the merch shop).

btw, Jack's videosong rules are: 1. What you see is what you hear (no lip-syncing for instruments or voice). 2. If you hear it, at some point you see it (no hidden sounds).

Posted 4/23/2009
This video knocks me out. Studio musician (and EHX Forums contributor) Bill Ruppert used his HOG, with a little help from his Stereo Memory Man with Hazarai, to reproduce one of the most instantly recognizable sounds in Rock & Roll history: the intro to The Who's "Won't Get Fooled Again."

In the video Bill shares his settings and performace notes, and adds: "All done with a regular guitar, a regular pickup, and a regular cable!"

Posted 4/10/2009
Be sure to catch John Frusciante's comments on the English Muff'n in the April 2009 issue of Vintage Guitar Magazine: "The Electro-Harmonix English Muff'n tube fuzz has some really extreme EQ and a big, thick and meaty sound. I used it on the solo for 'Enough Of Me.' I turn the EQ up, but leave my guitar tone knobs down and use either the middle or neck pickup so the original source sound is really dark and plain. If you blast the tone controls on the effect, you get a really thick, beautiful sound that reminds me of an exaggerated Eric Clapton tone in cream, where you have this really smooth fuzz."

In addition to the English Muff'n, John has also toured and recorded with the Micro Synthesizer, Big Muff Pi (both USA and Russian), POG, Metal Muff, HOG, Holy Grail, and Deluxe Electric Mistress. That said, I'm sure you fru-heads are still going to email and tell me what I left out.

Posted 9/22/2008

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Quick Specs
Flawless polyphonic glitch-free tracking across the entire range!
Controllable harmonic intervals: -2 octaves, -1 octave, Original note, +5th, +1 octave, +1 octave +5th, +2 octaves, +2 octaves + 3rd, +3 octaves, +4 octaves.
Works directly from your instrument's output
Expression pedal (optional) with 7 selectable expression modes: +/- 1 octave and 1 step pitch bend, freeze + gliss, volume, wah and filter frequency
Pitch Bend expression mode turns the HOG into a whammy pedal
Freeze expression mode is a new guitar effect never heard before. Freeze allows the musician to freeze a note or chord so you can play over it or slide to new notes just like a keyboardist would do when using portamento
Dedicated resonant filtering with sweepable frequency control
Amplitude envelope control allowing the musician to lengthen a note's attack, for swell effects, or to increase a note's decay speed
Separate lower and upper harmonic region amplitude envelopes
MIDI in allows expression control using MIDI pitch bend
9LDC-500 power supply included
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