Mesa/Boogie (also known as Mesa Engineering) is an American company in
Petaluma, California, that manufactures
amplifiers and other accessories for
guitar
The guitar is a stringed musical instrument that is usually fretted (with Fretless guitar, some exceptions) and typically has six or Twelve-string guitar, twelve strings. It is usually held flat against the player's body and played by strumming ...
s and
basses. It has been in operation since 1969.
Mesa was started by Randall Smith as a small repair shop which modified
Fender amplifiers, particularly the diminutive
Fender Princeton. Smith's modifications gave the small amps much more input gain, making them much louder as well as creating a high-gain, distorted guitar tone. Prominent early customers included
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 ...
and
Keith Richards and
Ron Wood of
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 ...
. Exposure from these top players helped to establish Mesa/Boogie's position on the market, and it is frequently referred to as the first manufacturer of
boutique amplifiers.
Subsequent design revisions to Mesa's early amps lead to the
Mark Series, which popularized modern, high-gain circuits,
while the 1990s saw the introduction of Mesa's flagship
Rectifier
A rectifier is an electrical device that converts alternating current (AC), which periodically reverses direction, to direct current (DC), which flows in only one direction.
The process is known as ''rectification'', since it "straightens" t ...
amps, the success of which made the brand a staple of modern rock tone.
In 2021, Mesa/Boogie was acquired by
Gibson.
Randall Smith
Randall Smith was born into a musical family in
Berkeley, California
Berkeley ( ) is a city on the eastern shore of San Francisco Bay in northern Alameda County, California, United States. It is named after the 18th-century Anglo-Irish bishop and philosopher George Berkeley. It borders the cities of Oakland, Cali ...
in 1946.
His mother and sister played piano and his father was the first-chair clarinet with the
Oakland Symphony Orchestra, played tenor sax, had a radio show and led a hotel dance band. Smith believes all of his early musical experiences taught him how to hear tone.
As a
Boy Scout, Smith became friends with his troop leader's son and they built ham radios together. Smith's father had a friend, Ernie, who built hi-fi turntables and gave him a couple to experiment on until he was 11 or 12.
Smith attended
Miramonte High School in
Orinda, California, and graduated in 1964. During his freshman year he attended distant
University of California, Santa Barbara
The University of California, Santa Barbara (UC Santa Barbara or UCSB) is a Public university, public Land-grant university, land-grant research university in Santa Barbara County, California, United States. Tracing its roots back to 1891 as an ...
, as his parents wanted him removed from the
counterculture
A counterculture is a culture whose values and norms of behavior differ substantially from those of mainstream society, sometimes diametrically opposed to mainstream cultural mores.Eric Donald Hirsch. ''The Dictionary of Cultural Literacy''. Ho ...
influences of local
University of California, Berkeley
The University of California, Berkeley (UC Berkeley, Berkeley, Cal, or California), is a Public university, public Land-grant university, land-grant research university in Berkeley, California, United States. Founded in 1868 and named after t ...
.
However, he would hop freight trains nearly every weekend from Santa Barbara back to the Bay Area to see friends and return to the Beat coffee houses and bookstores of Berkeley. During the next four years he attended UC Berkeley, studying humanities, English Literature and creative writing courses, but never graduated.
Smith wanted to participate in the burgeoning San Francisco music scene, having been taught clarinet and a little sax by his father, but he took up drums, as it was the easiest to learn quickly. He played with a local blues and jam band and co-founded the band Martha's Laundry. While playing a gig, keyboardist Dave Kessner's amp failed, and after Smith successfully repaired it, an impressed Kessner proposed opening a music store together with Smith as the repairman.
They opened Prune Music in 1967, inside a building that had been a Chinese grocery store. Smith's clientele included area bands like the
Steve Miller Band
The Steve Miller Band is an American rock music, rock band formed in San Francisco, California in 1966. The band is led by Steve Miller (musician), Steve Miller on guitar and lead vocals. The group had a string of mid- to late-1970s hit singles ...
, the
Grateful Dead
The Grateful Dead was an American rock music, rock band formed in Palo Alto, California, in 1965. Known for their eclectic style that fused elements of rock, blues, jazz, Folk music, folk, country music, country, bluegrass music, bluegrass, roc ...
, and
Jefferson Airplane.
Offshoots of Prune Music continue in Berkeley to this day with Subway Guitars, Sam Cohen (aka Fat Dog) and Guitar Resurrection in Austin, TX with former Martha's Laundry guitarist, Jim Lehman (aka Lizard Slim). They were partners until 1975.
History of Mesa/Boogie
Name
Mesa/Boogie began with a practical joke when Smith was commissioned to secretly convert the 20-watt
Fender Princeton of a local guitarist into a significantly louder 100-watt amp without altering its appearance. He accomplished this by replacing the amplifier section with that of a
Fender Bassman and replacing the 10-inch speaker with a 12-inch speaker. To ensure the joke would work, Smith asked
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 ...
, a customer at Prune Music, to demo the amp. Despite initial skepticism at the sight of the seemingly stock amplifier, Santana played it and was impressed, exclaiming, "Man, that amp really boogies!"
In addition to the amp repair business, Smith supplemented his income by building concrete foundations for summer houses and rebuilding
Mercedes-Benz
Mercedes-Benz (), commonly referred to simply as Mercedes and occasionally as Benz, is a German automotive brand that was founded in 1926. Mercedes-Benz AG (a subsidiary of the Mercedes-Benz Group, established in 2019) is based in Stuttgart, ...
automobile engines. Smith made up Mesa Engineering, an official-sounding name, as the umbrella company for these efforts: purchasing concrete by the truckload for house projects, as well as wholesale parts for amps and engines.
The 1970s and the Princeton Boogie
If hot-rodding Fenders was the first breakthrough, the second was developing an extra gain stage for the guitar input. Smith was building a preamplifier for
Lee Michaels, who needed a pre-amp to drive his new Crown DC-300 power amplifiers. Smith added an extra tube gain stage to the preamp, with three variable gain controls at different points in the circuit, in what is now called a "cascaded" design. The amount of gain produced surprised both men, and Smith combined the cascaded design with the small form factor of the Fender Princeton, creating the first high-gain amp, the "Princeton Boogie."
Released in 1972, the Boogies solved the issue of amps not having enough gain to sustain notes at volumes suitable for smaller venues.
An early customer, Santana took a snakeskin-covered model to a jam session with
Bob Dylan
Bob Dylan (legally Robert Dylan; born Robert Allen Zimmerman, May 24, 1941) is an American singer-songwriter. Described as one of the greatest songwriters of all time, Dylan has been a major figure in popular culture over his nearly 70-year ...
and
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 ...
at
Madison Square Garden
Madison Square Garden, colloquially known as the Garden or by its initials MSG, is a multi-purpose indoor arena in New York City. It is located in Midtown Manhattan between Seventh Avenue (Manhattan), Seventh and Eighth Avenue (Manhattan), Eig ...
. Joining the Stones onstage for an encore of "
Sympathy for the Devil," Santana's guitar tone turned the band into fans of the brand, and the Stones' next tour exclusively featured Boogie amps.
As the demand for his amps grew, Smith decided to move his workshop out of the Prune Music storefront to get away from the distractions of the store having become a busy local hangout. He relocated to what was formerly a plywood dog kennel, then, eventually, to his home.
Smith produced a number of custom variations of the Boogie through the late 1970s, with options including reverb, a five-band graphic EQ, various speakers (most often
Altec or
Electro-Voice),
koa wood jointed cabinets, and wicker grills.
Upon the 1978 release of the Boogie's successor—the "Mark II"—the Boogie was renamed the
Mark I.
Smith ultimately produced over 3,000 amps out of his home workshop in the 1970s.
The 1980s and the Mark IIC+

As Mesa continued to grow, Smith moved the company to Petaluma in 1980 and continued to improve his amp designs to meet players' requests. Revisions to the Mark II resulted in amplifier milestones such as channel switching (Mark IIA) and the first effects loop (Mark IIB).
The IIC was introduced in 1983 to fix a noticeable "pop" when switching channels, while subsequent improvements to the effects loop resulted in a handwritten "+" designation on the rear of each amplifier's chassis.
Notably, this new IIC+ variant also featured an altered preamp to create a more aggressive sound, with a strong midrange focus and tight low end. Combined with its graphic EQ, the amp excelled at "soaring lead sounds and huge crunch chords."
Early adopters included heavy metal guitarists like
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
Kirk Hammett and
James Hetfield
James Alan Hetfield (born August 3, 1963) is an American musician. He is the lead vocalist, rhythm guitarist, co-founder, and a primary songwriter of heavy metal band Metallica. He is mainly known for his raspy voice and intricate rhythm playi ...
, who was dissatisfied with
Marshall amps at the time and wanted something "percussive, tight, and in your face."
''
Guitar World'' cited the IIC+'s use on ''
Master of Puppets'' as the primary reason for its "holy grail" status in the rock and metal genres, while noting the amp was also a favorite of top session musicians at the time like
Steve Lukather.
As the Mark III was already deep in development, fewer than 3,000 IIC+ amps were made during its short production run between January 1984 and March 1985. Additionally, some players had earlier Mark II models modified to IIC+ specs. The IIC+ is Mesa/Boogie's most valuable amp on the secondary market, with models often selling for over $15,000, as of 2023.
Throughout the decade, Mesa continued to produce combo and head amplifiers, and began production of rack power and pre-amps, developing power amplifiers such as the M180/190 and Strategy series, as well as pre-amps such as the Quad and Studio. Other models developed in the 1980s included the Mark III, Mark IV, the Son of Boogie, and the Studio .22.
The 1990s and the Rectifiers
As the 1980s came to a close, the complicated features and boutique styling of the Mark series began losing popularity in favor of simpler designs by Marshall,
Bogner, and
Soldano.
Particularly inspired by the
Soldano SLO-100—itself derived from the Mark series circuits
—Mesa introduced the
Dual Rectifier in 1991.
With a "raw, aggressive bass-heavy sound"
and sporting a characteristic steel, diamond faceplate, the Rectifier was Mesa's take on a "big, monster-metal head" and intended to look threatening compared to the Mark amps.
The Rectifier became immensely popular among heavier styles of rock music in the wake of
grunge
Grunge (sometimes referred to as the Seattle sound) is an alternative rock Music genre, genre and subculture that emerged during the in the U.S. state of Washington (state), Washington, particularly in Seattle and Music of Olympia, Washington, O ...
, most notably
nu metal
Nu metal (sometimes stylized as nü-metal, with a metal umlaut) is a subgenre of that combines elements of heavy metal music with elements of other music genres such as hip hop music, hip hop, funk, industrial music, industrial, and grunge. Nu ...
,
as well as
hard rock
Hard rock or heavy rock is a heavier subgenre of rock music typified by aggressive vocals and Distortion (music), distorted electric guitars. Hard rock began in the mid-1960s with the Garage rock, garage, Psychedelic rock, psychedelic and blues ...
,
post-grunge
Post-grunge is an offshoot of grunge that has a less abrasive or intense tone than traditional grunge. Originally, the term was used almost pejoratively to label mid-1990s alternative rock bands such as Bush (British band), Bush, Candlebox, Colle ...
, and
punk. While an array of bands have used Rectifiers—including
Korn,
Tool
A tool is an Physical object, object that can extend an individual's ability to modify features of the surrounding environment or help them accomplish a particular task. Although many Tool use by animals, animals use simple tools, only human bei ...
,
Soundgarden
Soundgarden was an American rock band formed in Seattle, Washington, in 1984 by singer and drummer Chris Cornell, lead guitarist Kim Thayil, and bassist Hiro Yamamoto. Cornell switched to rhythm guitar in 1985, replaced on drums initially ...
,
Foo Fighters
The Foo Fighters are an American Rock music, rock band formed in Seattle in 1994. Initially founded as a one-man project by former Nirvana (band), Nirvana drummer Dave Grohl, the band comprises vocalist/guitarist Grohl, bassist Nate Mendel, gu ...
, and
Blink 182—Smith has said the overwhelming success of the amp with its distinctive sound and styling has led many people to associate the entire Mesa brand exclusively with metal, despite the company's roots in the "Fender legacy" and its initial reputation as a "
hippie outfit" aimed at blues players.
Mesa continued to revise the design of the Rectifiers as the decade went on, with "Revisions" F and G having a darker, looser sound that extended the model's popularity into the 2000s.
Mesa followed up the success of the Rectifiers with the short-lived Maverick and Blue Angel models, as well as the Nomads.
The 2000s to present day
Mesa has continued to introduce new models in the 2000s and 2010s, with models such as the Road King II, the Lone Star and Lone Star Special, the Stiletto and Express lines along with lower watt versions of its large amps, such as the mini Rectifier, and the Mark V:25 and Mark V:35.
On January 6, 2021, it was announced that
Gibson had acquired Mesa/Boogie,
with then-75-year-old Smith joining Gibson as "Master Designer and Pioneer of Mesa/Boogie and beyond." In this capacity, Smith oversaw the development and release of the Mark VII amplifiers. In mid-2024, Gibson announced that Smith was no longer with the company, having "completed his time" in his prior role.
Notable users
References
External links
*
YouTube channel product info, demos, interviews, history
{{Gibson Guitar Corporation
Guitar amplifier manufacturers
Petaluma, California
Companies based in Sonoma County, California
Audio equipment manufacturers of the United States
Gibson Brands
Mesa/Boogie