Electro-Harmonix (also commonly referred to as EHX) is a New York City-based company that makes electronic audio processors and sells
rebranded
Rebranding is a marketing strategy in which a new name, term, symbol, design, concept or combination thereof is created for an established brand with the intention of developing a new, differentiated identity in the minds of consumers, investors ...
vacuum tube
A vacuum tube, electron tube, thermionic valve (British usage), or tube (North America) is a device that controls electric current flow in a high vacuum between electrodes to which an electric voltage, potential difference has been applied. It ...
s. The company was founded by Mike Matthews in 1968. It is best known for a series of guitar
effects pedal
An effects unit, effects processor, or effects pedal is an electronic device that alters the sound of a musical instrument or other audio source through audio signal processing.
Common effects include distortion/overdrive, often used with el ...
s introduced in the 1970s and 1990s. EHX also made a line of guitars in the 1970s.
During the mid-1970s, Electro-Harmonix established itself as a manufacturer of guitar effects pedals. It was the first company to manufacture, and market affordable state-of-the art "stomp-boxes" for guitarists and bassists, such as the first stomp-box
flanger
Flanging is an audio effect produced by mixing two identical signals together, one signal delayed by a small and (usually) gradually changing period, usually smaller than 20 milliseconds. This produces a swept comb filter effect: peaks and ...
(Electric Mistress), the first analog
echo/delay unit with no moving parts (Memory Man), the first guitar synthesizer in pedal form (Micro Synthesizer), and the first
tube-amp distortion
In signal processing, distortion is the alteration of the original shape (or other characteristic) of a signal. In communications and electronics it means the alteration of the waveform of an information-bearing signal, such as an audio signal ...
simulator (Hot Tubes). In 1980, Electro-Harmonix also designed and marketed one of the first digital delay/looper pedals (16-Second Digital Delay) and a line of guitars in the 1970s.
Company history
Founding years (1967–1968)
Electro-Harmonix was founded by
rhythm and blues
Rhythm and blues, frequently abbreviated as R&B or R'n'B, is a genre of popular music that originated within African American communities in the 1940s. The term was originally used by record companies to describe recordings marketed predomina ...
keyboard player Mike Matthews in October 1968 in
New York City
New York, often called New York City (NYC), is the most populous city in the United States, located at the southern tip of New York State on one of the world's largest natural harbors. The city comprises five boroughs, each coextensive w ...
with $1,000.
He took a job as a salesman for
IBM
International Business Machines Corporation (using the trademark IBM), nicknamed Big Blue, is an American Multinational corporation, multinational technology company headquartered in Armonk, New York, and present in over 175 countries. It is ...
in 1967, but shortly afterwards, in partnership with Bill Berko, an audio repairman who claimed to have his own custom circuit for a fuzz pedal, he jobbed construction of the new pedal to a contracting house and began distributing the pedals under a deal with the
Guild Guitar Company. Fuzzboxes were in demand following a trail of hits involving their sound, including "
(I Can't Get No) Satisfaction
"(I Can't Get No) Satisfaction" is a song by the English rock band the Rolling Stones. A product of Mick Jagger and Keith Richards' songwriting partnership, it features a guitar riff by Richards that opens and drives the song. The riff is w ...
" by
The Rolling Stones
The Rolling Stones are an English Rock music, rock band formed in London in 1962. Active for over six decades, they are one of the most popular, influential, and enduring bands of the Album era, rock era. In the early 1960s, the band pione ...
two years before (the pedal's stomp switch can be clearly heard at 0:35 before Richards plays the song's trademark riff), and recent popularization of
Jimi Hendrix
James Marshall "Jimi" Hendrix (born Johnny Allen Hendrix; November 27, 1942September 18, 1970) was an American singer-songwriter and musician. He is widely regarded as one of the greatest and most influential guitarists of all time. Inducted ...
. The latter connection resulted in the pedals being branded the 'Foxey Lady'. In addition several low priced models of acoustic guitars were sold.
Following the departure of his partner, Matthews was introduced to inventor and electric engineer Robert Myer through IBM colleagues. Together they designed a circuit to create a distortion-free sustain. A simple line booster used by Myers in testing to preamplify the guitar's signal was also manufactured from 1969 as the Linear Power Booster (LPB-1), and has continued production in present day.
First products
The Axis fuzz pedal, also sold under the name 'Foxey Lady' for the Guild guitar company, and LPB-1 Linear Power Booster were the first products in 1969. The LPB-1 massively boosted a guitar signal & could be used to overdrive an amplifier, resulting in a raw distorted sound, full of sustain and harmonics. Several similar devices, which sold well, followed, such as the Treble Booster and Bass Booster.
The Mike Matthews Freedom Amp, a portable guitar amp powered by 40 "D" batteries, was popular in many venues that lacked an A/C power source.
In 1982, the company also spun up an offshoot called The Alien Group, which produced the Voice Box and its successor Voice Box II. These were external speech synthesizer boxes built around the Votrax SC-01A speech synthesizer chip. Available for the Atari 400/800, Commodore 64, and Apple II computers and advertised in computer magazines of the time, they added speech and singing capability.
Change of direction
Electro-Harmonix stopped making pedals in the mid-1980s, and in the early 1990s started selling
vacuum tube
A vacuum tube, electron tube, thermionic valve (British usage), or tube (North America) is a device that controls electric current flow in a high vacuum between electrodes to which an electric voltage, potential difference has been applied. It ...
s re-branded with its name for guitar amplifiers, which it had also been making since the 1970s. During the same period Matthews bought ExpoPul, a vacuum-tube factory, located in a former military industrial complex in Saratov in Russia.
Due to demand and the high prices guitarists were paying for old 1970s pedals on the
vintage market, Electro-Harmonix reissued the more popular old pedals in the mid-1990s, including the Big Muff Pi and Small Stone. In 2002 it started designing new pedals to add to its range. Company policy was that all reissued effects remained as close as possible to the original, vintage designs; however, casings, knobs and especially the old-fashioned mini-jack power plug were not up to later standards. In 2006 the smaller and more standardized "micro" and "nano" effect lines using
surface-mount
Surface-mount technology (SMT), originally called planar mounting, is a method in which the electrical components are mounted directly onto the surface of a printed circuit board (PCB). An electrical component mounted in this manner is referred ...
circuit components were introduced.
Circuit board
A printed circuit board (PCB), also called printed wiring board (PWB), is a laminated sandwich structure of conductive and insulating layers, each with a pattern of traces, planes and other features (similar to wires on a flat surface) ...
manufacture was
outsourced, and the pedals assembled in New York.
Effects pedals

Electro-Harmonix produces pedals with many different types of sound manipulation suitable for guitar, bass, vocal, keyboard, and other instruments.
It also sells rebranded vacuum tubes carrying the Electro-Harmonix brand name. As of 2022, ExpoPul factory in Saratov, southwestern Russia, continued to produce vacuum tubes for Electro-Harmonix, with Mike Matthews reportedly showing no intention of divesting from the business. The operation in Russia employs more than 300 individuals, in contrast to the 125 employees in New York.
As of 2024, vacuum tubes produced by ExpoPul in Russia are still available for purchase on the official Electro-Harmonix website.
Big Muff
In 1969 Bob Myer and Mike Matthews designed the
Big Muff Pi, a
fuzzbox
Distortion and overdrive are forms of audio signal processing used to alter the sound of amplified electric musical instruments, usually by increasing their gain, producing a "fuzzy", "growling", or "gritty" tone. Distortion is most commonly ...
that added a bass-heavy sustain to any guitar sound. It is described by the company as "the finest harmonic distortion-sustain device developed to date". Originally this was intended to be a pedal that would mimic the fuzz tones of Jimi Hendrix and other guitarists at the time, but the result was a mix of a fuzz and distortion pedal with a very heavy sound. It also made small amps sound much better and allowed distortion at any volume.
The pedal sold well and was used by
Carlos Santana
Carlos Humberto Santana Barragán (; born July 20, 1947) is an American guitarist, best known as a founding member of the Rock music, rock band Santana (band), Santana. Born and raised in Mexico where he developed his musical background, he r ...
,
Pink Floyd
Pink Floyd are an English Rock music, rock band formed in London in 1965. Gaining an early following as one of the first British psychedelic music, psychedelic groups, they were distinguished by their extended compositions, sonic experiments ...
's
David Gilmour
David Jon Gilmour ( ; born 6 March 1946) is an English guitarist, singer and songwriter who is a member of the rock band Pink Floyd. He joined in 1967, shortly before the departure of the founder member Syd Barrett. By the early 1980s, Pink F ...
,
Alex Lifeson of
Rush and, later,
Metallica
Metallica is an American heavy metal band. It was formed in Los Angeles in 1981 by vocalist and guitarist James Hetfield and drummer Lars Ulrich, and has been based in San Francisco for most of its career. The band's fast tempos, instrume ...
's bassist
Cliff Burton
Clifford Lee Burton (February 10, 1962 – September 27, 1986) was an American musician who served as the bassist for the thrash metal band Metallica from 1982 until his death in 1986. He is renowned for his musicianship and influence.
Burton ...
,
The Jesus and Mary Chain
The Jesus and Mary Chain are a Scottish alternative rock band formed in East Kilbride in 1983. The band revolves around the songwriting partnership of brothers Jim and William Reid, who are the two founders and only consistent members of the ...
, and in the 1990s
KoRn
Korn (stylized as KoЯn) is an American nu metal band from Bakersfield, California, originally formed in 1993 by James Shaffer, James "Munky" Shaffer, Reginald Arvizu, Reginald "Fieldy" Arvizu and David Silveria, who were members of the band ...
's rhythm guitarist
Munky, Vicente Freitas,
Jack White
John Anthony White (; born July 9, 1975) is an American musician who achieved international fame as the guitarist and lead singer of the rock duo the White Stripes. As the White Stripes disbanded, he sought success with his solo career, subse ...
of
The White Stripes
The White Stripes were an American Rock music, rock duo formed in Detroit, Michigan, in 1997. The group consisted of Jack White (guitar, keyboards, piano, vocals) and Meg White (drums, percussion, vocals). They were a leading group of 2000s indi ...
,
J Mascis
Joseph Donald Mascis Jr. (born December 10, 1965), better known as J Mascis, is an American musician who is the singer, guitarist and main songwriter for the alternative rock band Dinosaur Jr. He has also released several albums as a solo artist a ...
of
Dinosaur Jr.,
The Edge
David Howell Evans (born 8 August 1961), better known as the Edge or simply Edge,McCormick (2006), pp. 21, 23–24 is a British-Irish musician, singer, and songwriter. He is best known as the lead guitarist, keyboardist, and backing vocalist o ...
of
U2, and
Billy Corgan
William Patrick Corgan Jr. (born March 17, 1967) is an American guitarist, singer, songwriter, and professional wrestling promoter. He is best known as the co-founder, lead guitarist, primary songwriter, singer, and only constant member of alter ...
(on
The Smashing Pumpkins
The Smashing Pumpkins (also simply known as Smashing Pumpkins) are an American alternative rock band formed in Chicago in 1988 by frontman and guitarist Billy Corgan, guitarist James Iha, bassist D'arcy Wretzky and drummer Jimmy Chamberlin. The ...
landmark album, ''
Siamese Dream''). The band
Mudhoney
Mudhoney is an American rock music, rock band formed in Seattle, Washington, on January 1, 1988, following the demise of Green River (band), Green River. Its members are singer and rhythm guitarist Mark Arm, lead guitarist Steve Turner (guitari ...
titled their debut EP ''
Superfuzz Bigmuff''.
Although the first Big Muff production date was for many years cited as 1971, the first version of the Big Muff was actually sold in 1969 as a hand-made "perf board" version. A production version with an etched PCB board was made in early 1970. Mike Matthews was friends with Jimi Hendrix and claims Jimi bought one from Manny's Music in New York, shortly after they were released and had one in the Electric Lady Studios shortly before Jimi's death in 1970. Several variations of the Big Muff Pi followed throughout the 1970s. Electro-Harmonix produced a reissue assembled in
New York City
New York, often called New York City (NYC), is the most populous city in the United States, located at the southern tip of New York State on one of the world's largest natural harbors. The city comprises five boroughs, each coextensive w ...
; until 2009 it produced a version made by Sovtek in
Russia
Russia, or the Russian Federation, is a country spanning Eastern Europe and North Asia. It is the list of countries and dependencies by area, largest country in the world, and extends across Time in Russia, eleven time zones, sharing Borders ...
which provided a slightly different tone. The Bass Big Muff replaced the Russian version.
Several other variations (some of which are not actually Big Muffs) of the pedal were in production , including the Metal Muff (intended to achieve the higher gain Metal guitar sound), the Double Muff, which incorporates the original Muff Fuzz circuit, twice in series with a single overdrive control for each circuit, providing the user either with a cascaded 'Double Muff' sound or the original Muff Fuzz circuit, the Little Big Muff, a smaller version, and a variation in circuit, of the NYC Big Muff, which produces yet another variation in sound, and the Big Muff with Tone Wicker, which is similar to the 2008 revision NYC Big Muff, with two added features: a tone bypass switch allowing you to bypass the tone control and a switch that adjusts the frequency of three high frequency filters in the circuit. The Germanium 4 Big Muff Pi is a dual unit, housing an overdrive and a distortion circuit featuring 2 Germanium transistors each, and simulating a dying battery with a Volt control, which characteristically affects the sound of the distortion.
In 2018, Electro-Harmonix released three vintage Big Muff re-issues the Green Russian Big Muff, the Op-Amp Big Muff, and the Triangle Big Muff, and in early 2020 the Ram's Head Big Muff was reissued.
Phasers, chorus and flanger
Electro-Harmonix often produces a range of pedals based on a single effect, and then combines two or more into higher end units. For instance, the Epitome combines the Micro POG, Stereo Electric Mistress, and Holy Grail Plus into one effect unit.
The widely used Small Stone
phase shifter
A phase shift module is a microwave network module which provides a controllable phase shift of the RF signal. Phase shifters are used in phased arrays.
Classification
Active versus passive
Active phase shifters provide gain, while passive ...
is a 4-stage phaser designed by David Cockerell, whom Electro-Harmonix hired from his former employer
EMS. The phased sounds of French composer
Jean-Michel Jarre
Jean-Michel André Jarre (; born 24 August 1948) is a French composer, performer and record producer. He is a pioneer in the Electronic music, electronic, Ambient music, ambient and New-age music, new-age genres, and is known for organising out ...
depended heavily on the Small Stone unit. It was reissued years later by EHX and a smaller version of the pedal was eventually introduced in a 'Nano' casing (officially called the "Small Stone (Nano Chassis)").
The Small Clone
chorus
Chorus may refer to:
Music
* Chorus (song), the part of a song that is repeated several times, usually after each verse
* Chorus effect, the perception of similar sounds from multiple sources as a single, richer sound
* Chorus form, song in whic ...
is a very popular chorus pedal, used by
Kurt Cobain
Kurt Donald Cobain (February 20, 1967 – ) was an American musician. He was the lead vocalist, guitarist, primary songwriter, and a founding member of the grunge band Nirvana (band), Nirvana. Through his angsty songwriting and anti-establis ...
, both live and in studio. Like the Small Stone, it is issued in both the standard size and two different smaller versions (the Nano Clone is based on the Clone Theory circuit, while the neo clone is the standard).
The Electric Mistress is an analog
flanger
Flanging is an audio effect produced by mixing two identical signals together, one signal delayed by a small and (usually) gradually changing period, usually smaller than 20 milliseconds. This produces a swept comb filter effect: peaks and ...
. It had first been sold in 1976 and was by that the first flanger in pedal format. The Deluxe version has been reissued and is still in production, although in 2015, a new Deluxe Electric Mistress was introduced in the company's smaller "XO" casing. As well, there are two digital recreations called NEO Mistress and Stereo Electric Mistress. Except for the very first blue/red version the Electric Mistress featured a "Filter Matrix mode" which allowed the user to freeze it at any point in the flange, offering distinctive chime-like tones. On the Neo and Stereo Mistress, this is achieved at a certain setting on the "rate" knob. Notable users include
David Gilmour
David Jon Gilmour ( ; born 6 March 1946) is an English guitarist, singer and songwriter who is a member of the rock band Pink Floyd. He joined in 1967, shortly before the departure of the founder member Syd Barrett. By the early 1980s, Pink F ...
,
Todd Rundgren
Todd Harry Rundgren (born June 22, 1948) is an American musician, singer, songwriter, and record producer who has performed a diverse range of styles as a solo artist and as a member of the bands Nazz and Utopia. He is known for his sophistica ...
,
Alex Lifeson,
Robin Trower
Robin Leonard Trower (born 9 March 1945) is an English rock guitarist who achieved success with Procol Harum throughout 1967–1971 and then again as the bandleader of his own power trio known as the Robin Trower Band.
Biography
Robin Trower ...
,
Andy Summers
Andrew James Summers (born 31 December 1942) is an English guitarist best known as a member of the rock band the Police. Prior to joining the Police, Summers had been a member of several bands during the 1960s, including Zoot Money's Big Roll ...
of
The Police
The Police were an English rock band formed in London in 1977. Within a few months of their first gig, the line-up settled as Sting (lead vocals, bass guitar, primary songwriter), Andy Summers (guitar) and Stewart Copeland (drums, percussi ...
,
J Mascis
Joseph Donald Mascis Jr. (born December 10, 1965), better known as J Mascis, is an American musician who is the singer, guitarist and main songwriter for the alternative rock band Dinosaur Jr. He has also released several albums as a solo artist a ...
of
Dinosaur Jr. and
Red Hot Chili Peppers
The Red Hot Chili Peppers are an American rock band formed in Los Angeles in 1982, consisting of Anthony Kiedis (vocals), Flea (musician), Flea (bass), John Frusciante (guitar), and Chad Smith (drums). Their music incorporates elements of a ...
guitarist
John Frusciante
John Anthony Frusciante ( ; born March 5, 1970) is an American musician and the guitarist of the Red Hot Chili Peppers, having been with the band across three iterations. He has released 11 solo albums and 7 EPs, ranging in style from acoustic gu ...
.
The Flanger Hoax pedal is a more advanced unit, allowing further control of the various parameters of phaser, flanger and chorusing effects.
The Polychorus allows highly adjustable chorus, flanger, filter matrix, and slapback echo effects. Notable users include Cobain (i.e. "
Radio Friendly Unit Shifter"),
Adrian Belew
Robert Steven "Adrian" Belew (born December 23, 1949) is an American musician, singer, songwriter, and record producer. A multi-instrumentalist primarily known as a guitarist and singer, he is noted for his unusual approach to the instrument, his ...
, and more recently
Ryan Jarman
Ryan James Jarman is a British musician who is the guitarist and one of the vocalists of the indie rock band The Cribs.
The Cribs
Jarman formed The Cribs in 2001 with his twin brother, Gary, and younger brother, Ross.
The band has released ...
of
The Cribs
The Cribs are a British indie rock band originally from Wakefield, West Yorkshire, that formed in 2001. The band consists of twins Gary Jarman, Gary and Ryan Jarman and their younger brother Ross Jarman. They were subsequently joined by ex-The ...
.
Electro-Harmonix's 'XO' line added the Stereo Polyphase, an analog optical envelope- and
LFO-controlled
phase shifter
A phase shift module is a microwave network module which provides a controllable phase shift of the RF signal. Phase shifters are used in phased arrays.
Classification
Active versus passive
Active phase shifters provide gain, while passive ...
.
Delays and loopers

Electro-Harmonix also manufactures delay pedals, including the Deluxe Memory Man, Stereo Memory Man with Hazarai, and #1 Echo. They also produce the '2880' pedal, which allows complex looping and multi-track overdubbing. The #1 Echo provides basic digital echo capability, while the Deluxe Memory Man provides more control over length, repeats, etc. The Deluxe Memory Man also includes built-in chorusing and vibrato effects. The digital Stereo Memory Man with Hazarai (distinct from the Analog Deluxe Memory Man) also includes reverse echo effect and looping/overdubbing. The Memory Toy and Memory Boy delay pedals are essentially smaller budget versions of the Deluxe Memory Man. The Memory Man effects pedal was used by Edge from the band U2 to record the songs "I Will Follow" and "Sunday Bloody Sunday". One of the singles from the band
Deerhunter
Deerhunter is an American indie rock band from Atlanta, Georgia, formed in 2001. The band currently consists of Bradford Cox (vocals, guitar, keyboards), Moses Archuleta (drums, electronics, sound treatments), Lockett Pundt (guitar, vocals, ...
's 2010 album ''
Halcyon Digest'' was named "
Memory Boy".
Reverb
The Holy Grail, Holy Grail Plus, Holier Grail (discontinued), Holiest Grail (discontinued), Oceans 11, and Cathedral pedals produce reverberation. These cover a range of capability, including reverb length, room simulation, etc. The company's Holy Stain multi-effects pedal also includes two different types of reverb.
Tremolo and vibrato
Tremolo and vibrato are included as well, in both
solid-state and
vacuum tube
A vacuum tube, electron tube, thermionic valve (British usage), or tube (North America) is a device that controls electric current flow in a high vacuum between electrodes to which an electric voltage, potential difference has been applied. It ...
options. These are available in the Stereo Pulsar (solid-state) and Wiggler (tube) pedals.
Octave, pitch and synthesizer
Also available are a series of pitch modulation pedals. These include the Micro Synthesizer (for bass or guitar), HOG (Harmonic Octave Generator), POG (Polyphonic Octave Generator, released in 2005), POG 2 (2009), Micro POG (in an XO casing), Nano POG, Octave Multiplexer, Pitch Fork, and Pitch Fork+.
The POG line of pedals has been used extensively by several prominent 2000s-era rock guitarists, including
Jack White
John Anthony White (; born July 9, 1975) is an American musician who achieved international fame as the guitarist and lead singer of the rock duo the White Stripes. As the White Stripes disbanded, he sought success with his solo career, subse ...
(of
The White Stripes
The White Stripes were an American Rock music, rock duo formed in Detroit, Michigan, in 1997. The group consisted of Jack White (guitar, keyboards, piano, vocals) and Meg White (drums, percussion, vocals). They were a leading group of 2000s indi ...
,
The Raconteurs
The Raconteurs (, also known as The Saboteurs in Australia) are an American rock band from Detroit, Michigan, formed in 2005. The band consists of Jack White (vocals, guitar), Brendan Benson (vocals, guitar), Jack Lawrence (bass guitar), and ...
, et al.), and
Josh Homme
Joshua Michael Homme ( ; born May 17, 1973) is an American musician, singer-songwriter, multi-instrumentalist, and record producer. He is best known as the founder and only continuous member of the rock band Queens of the Stone Age, which he for ...
(of
Queens of the Stone Age
Queens of the Stone Age (commonly abbreviated as QOTSA or QotSA) is an American rock band formed in Seattle in 1996. The band was founded by vocalist and guitarist Josh Homme shortly before he returned to his native Palm Desert, California. ...
,
Them Crooked Vultures
Them Crooked Vultures is an American rock supergroup formed in Los Angeles in 2009 with American musician Josh Homme on lead vocals and guitar, English musician John Paul Jones on bass and keyboards, and American musician Dave Grohl on drums a ...
, et al.).
Envelope, EQ and compression
Electro-Harmonix offers several pedals for envelope/equalization modulation. Amongst them are the Bassballs (appropriately named for its intended use with bass guitars), Doctor Q and the Q-Tron. Another pedal of note was the
vacuum tube
A vacuum tube, electron tube, thermionic valve (British usage), or tube (North America) is a device that controls electric current flow in a high vacuum between electrodes to which an electric voltage, potential difference has been applied. It ...
-powered Black Finger Compressor which adds distortion-free sustain to the sound and which appeared in the mid-1970s. The
solid-state White Finger followed. In 2016, the Tone Corset was released as the latest analog compressor.
In 1995, Electro-Harmonix owner Mike Matthews commissioned Mike Beigel, former owner of Musitronics Corp. and inventor of the
Mu-tron III envelope filter, to design a new envelope filter using the same analog circuitry as the original Mu-tron III, thus keeping the sound as close to the original as possible while adding new features to bring the effect into the new millennium. The pedal featured the same controls as the Mu-tron III and incorporated a "Boost" feature, which activates an internal pre-amp and changes the function of the gain knob giving the Q-Tron a sound almost identical to the Mu-tron III. Another feature added to Q-Tron was an effects loop switch and attack response switch. Units with these features are called the Q-Tron+. A smaller more compact version, the Mini Q-Tron, is also available, as well as an even smaller version, the Micro Q-Tron. Electro-Harmonix also currently produces the C0ck Fight a talking wah filter with fuzz and a modulated low-pass filter, the Blurst
Other pedals
Electro-Harmonix currently manufactures over one hundred other pedals.
These include the Graphic Fuzz (a fuzzbox which includes an EQ section), the Octavix (octave fuzz), the Frequency Analyzer (which creates
ring modulation
In electronics, ring modulation is a signal processing function, an implementation of frequency mixing, in which two signals are combined to yield an output signal. One signal, called the carrier, is typically a sine wave or another simple w ...
) and the Voice Box, a
vocoder
A vocoder (, a portmanteau of ''vo''ice and en''coder'') is a category of speech coding that analyzes and synthesizes the human voice signal for audio data compression, multiplexing, voice encryption or voice transformation.
The vocoder wa ...
. The Voice Box has been included in a series of demonstration videos produced by
Jack Conte
Jack Conte (; born July 12, 1984) is an American musician and co-founder and CEO of Patreon. He and his wife Nataly Dawn comprise the musical duo Pomplamoose, and he is co-leader of the band Scary Pockets and founder of the band Magaziine.
Car ...
.
[
]
Electro-Harmonix has also made a few small power amp pedals for use as a simple
guitar amplifier
A guitar amplifier (or amp) is an electronic amplifier, electronic device or system that strengthens the electrical signal from a Pickup (music technology), pickup on an electric guitar, bass guitar, or acoustic guitar so that it can produce so ...
. The EHX 22 Caliber was a 22 watt solid state pedal capable of driving either an 8 ohm or 16 ohm speaker cabinet. It has been discontinued. The 22 Caliber was replaced in the lineup by the EHX 44 Magnum, a similar pedal capable of driving the same speaker load, but at a 44 watt output. The 5MM power amplifier, introduced in 2019, is a similar pedal, with a reduced output of 2.5 watts, but with the ability to run on a common 9-volt power supply, as opposed to the 24-volt supply needed to power the 44 Magnum.
2016, Electro-Harmonix reissued the MIG-50 a 50 watt tube amplifier head and later the 2x12 speaker cabinet.
Several pedals produced in the decades prior have also been discontinued, many of which are still in high demand for their unique sound.
Acoustic guitars
These guitars were only available from EH for a very short time in 1974. They were available through a special offer for $87.50 with the purchase of $50 or more in certain scratch-n-dent EH products. The list price was $187.50. These are the model names and descriptions: EH-7010 EH acoustic guitar (mahogany back and sides), EH-7020 EH acoustic guitar (D-28 copy, rosewood back and sides), and EH-7030 EH acoustic guitar (D-41 copy, rosewood back and sides, pearloid binding and inlay, 3 piece back).
They bought them from Moridaira/ Morris Guitar who at the time were the best guitar maker in Japan, making guitars for Fender and many big companies.
They put the EH on the guitars. The guitar, marked with the brand "Brody" is another Japanese-made acoustic that EH had made for them in the 70s. Mike Matthews has stated that Brody was his mother's maiden name. Unlike the other EH guitar, this one is of a lesser quality.
Notable users
*
Kurt Cobain
Kurt Donald Cobain (February 20, 1967 – ) was an American musician. He was the lead vocalist, guitarist, primary songwriter, and a founding member of the grunge band Nirvana (band), Nirvana. Through his angsty songwriting and anti-establis ...
:
Big Muff, Echo Flanger, Small Clone, Stereo Polychorus
*
Jamie Cook: Big Muff, Little Big Muff, Pulsar, HOG Foot Controller, Deluxe Memory Man, Holiest Grail
*
Billy Corgan
William Patrick Corgan Jr. (born March 17, 1967) is an American guitarist, singer, songwriter, and professional wrestling promoter. He is best known as the co-founder, lead guitarist, primary songwriter, singer, and only constant member of alter ...
: Op-Amp Big Muff, Polyphase, Electric Mistress, Small Stone
*
Chris Cornell
Christopher John Cornell ( Boyle; July 20, 1964 – May 18, 2017) was an American musician, best known as the lead vocalist, rhythm guitarist, and the primary lyricist for the rock music, rock bands Soundgarden and Audioslave. He also had a ...
: Deluxe Memory Man, Hog Guitar Synthesizer
*
Brad Delson &
Mike Shinoda
Michael Kenji Shinoda ( ; born February 11, 1977) is an American rapper, singer, songwriter, record producer, and graphic designer. He co-founded the rock band Linkin Park in 1996 and is the band's co-lead vocalist, as well as rhythm guitarist, ...
: Polyphase, HOG, Holy Sustain, Memory Man, Cathedral
*
The Edge
David Howell Evans (born 8 August 1961), better known as the Edge or simply Edge,McCormick (2006), pp. 21, 23–24 is a British-Irish musician, singer, and songwriter. He is best known as the lead guitarist, keyboardist, and backing vocalist o ...
: Deluxe Memory Man, Big Muff
*
Flea
Flea, the common name for the order (biology), order Siphonaptera, includes 2,500 species of small flightless insects that live as external parasites of mammals and birds. Fleas live by hematophagy, ingesting the blood of their hosts. Adult f ...
: Big Muff, Q-Tron
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Nils Frahm
Nils Frahm (born 20 September 1982) is a German musician, composer, and record producer based in Berlin. He is known for combining classical and electronic music and for an unconventional approach to the piano in which he mixes a grand piano, upr ...
: #1 Echo
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John Frusciante
John Anthony Frusciante ( ; born March 5, 1970) is an American musician and the guitarist of the Red Hot Chili Peppers, having been with the band across three iterations. He has released 11 solo albums and 7 EPs, ranging in style from acoustic gu ...
: Big Muff, Holy Grail Reverb, English Muff'n, Electric Mistress Flanger, POG
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Noel Gallagher
Noel Thomas David Gallagher (born 29 May 1967) is an English musician, singer and songwriter. Gallagher is the primary songwriter, lead guitarist and a co-lead vocalist of the rock band Oasis (band), Oasis. After leaving Oasis, he formed Noel ...
: Micro POG
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David Gilmour
David Jon Gilmour ( ; born 6 March 1946) is an English guitarist, singer and songwriter who is a member of the rock band Pink Floyd. He joined in 1967, shortly before the departure of the founder member Syd Barrett. By the early 1980s, Pink F ...
: Big Muff, Electric Mistress
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Goodiepal:POG 2 Polyphonic Octave Generator
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Jonny Greenwood
Jonathan Richard Guy Greenwood (born 5 November 1971) is an English musician. He is the lead guitarist and keyboardist of the rock band Radiohead, and has composed numerous film scores. He has been named one of the greatest guitarists by numer ...
: Freeze, Polychorus, Small Stone
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Peter Hook
Peter Hook (born 13 February 1956) is an English musician. He was the bassist and co-founder of the post-punk band Joy Division and its successor New Order. He often used the bass as a lead instrument, playing melodies on the high strings wi ...
: Clone Theory
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Jean-Michel Jarre
Jean-Michel André Jarre (; born 24 August 1948) is a French composer, performer and record producer. He is a pioneer in the Electronic music, electronic, Ambient music, ambient and New-age music, new-age genres, and is known for organising out ...
: Small Stone, Electric Mistress
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Daniel Kessler: Holy Grail Reverb
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Andreas Kisser: Big Muff
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Alex Lifeson: Big Muff Pi, Electric Mistress, Memory Man
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Justin Lockey: Holy Grail Plus, Micro POG, Nano Double Muff
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Doug Martsch: Memory Boy, 16 Second Digital Delay
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J. Mascis: Ram's Head Big Muff, Deluxe Electric Mistress, POG 2 Polyphonic Octave Generator
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Mike McCready
Michael David McCready (born April 5, 1966) is an American musician known for being a founding member and lead guitarist of Pearl Jam. McCready was also a member of the side project bands Flight to Mars, Temple of the Dog, Mad Season (band), Ma ...
: Micro POG, POG 2 Polyphonic Octave
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Brian Molko
Brian Molko (born 10 December 1972) is a British-American musician who is the lead vocalist, guitarist, and lyricist of the band Placebo (band), Placebo. He is known for his nasal voice and high registered vocals, feminine/androgynous appearance ...
: #1 Echo
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Mark Mothersbaugh
Mark Allen Mothersbaugh (; born May 18, 1950) is an American musician and composer. He came to prominence in the late 1970s as co-founder, lead vocalist and keyboardist of the new wave band Devo, whose " Whip It" was a top 20 single in the US ...
: Frequency Analyzer
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Lockett Pundt: Big Muff, Little Big Muff, Classic Holy Grail Reverb
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Omar Rodríguez-López: Small Stone Phase Shifter, Deluxe Memory Man, Memory Boy, Poly Chorus, Holy Grail, Big Muff
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Kurt Rosenwinkel
Kurt Rosenwinkel (born October 28, 1970) is an American jazz guitarist, composer, bandleader, producer, educator, keyboardist and record label owner.
Biography
Born in Philadelphia to a musical family, Rosenwinkel began taking piano lessons when ...
: HOG
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Kevin Shields
Kevin Patrick Shields (born 21 May 1963) is an Irish musician, singer, songwriter, and record producer, who achieved international fame as the lead vocalist and guitarist of the alternative rock band My Bloody Valentine (band), My Bloody Valenti ...
: Big Muff Pi
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Robert Smith: Electric Mistress, Deluxe Memory Man
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Mark Speer: Holy Grail
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Andy Summers
Andrew James Summers (born 31 December 1942) is an English guitarist best known as a member of the rock band the Police. Prior to joining the Police, Summers had been a member of several bands during the 1960s, including Zoot Money's Big Roll ...
: Electric Mistress, Muff Fuzz
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Kim Thayil
Kim Anand Thayil (born September 4, 1960)[Kim Thayil Biography](_blank)
Unofficial SG Homepage. : Micro POG
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Alex Turner
Alexander David Turner (born 6 January 1986) is an English musician. He is the lead vocalist and songwriter of the rock band Arctic Monkeys. Turner is known for his Songwriter, lyricism ranging from kitchen sink realism to surrealism, surreal ...
: Deluxe Memory Man
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Jeff Tuttle: Small Stone, Holy Grail, Small Clone, POG, Big Muff
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Jack White
John Anthony White (; born July 9, 1975) is an American musician who achieved international fame as the guitarist and lead singer of the rock duo the White Stripes. As the White Stripes disbanded, he sought success with his solo career, subse ...
: Big Muff, Big Muff Pi with Tone Wicker, POG, Bassballs, Holy Grail Nano Reverb
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Thom Yorke
Thomas Edward Yorke (born 7 October 1968) is an English musician who is the vocalist and main songwriter of the rock band Radiohead. He plays guitar, bass, keyboards and other instruments, and is noted for his falsetto. ''Rolling Stone'' desc ...
: Holy Grail, Iron Lung Vocoder, 45000 Multi-Track Looping Recorder
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Stuart Braithwaite
Stuart Leslie Braithwaite (born 10 May 1976) is a Scottish musician, singer and songwriter. He is the guitarist of post-rock band Mogwai, with whom he has recorded ten studio albums. He is also a member of the British alternative rock supergrou ...
: Big Muff Pi, Green Russian Big Muff, Superego Synth Engine, V256 Vocoder
References
{{Reflist, 30em
External links
Electro-HarmonixAn Interview with Mike MatthewsThe EH Man's Electro-Harmonix Extravaganza(vintage EH information)
The Mistress Mystery Page(vintage Electric Mistress information)
Guitar effects manufacturing companies
Guitar amplifier manufacturers
Audio amplifier manufacturers
Guitar amplification tubes
Manufacturing companies based in New York City
Audio equipment manufacturers of the United States