Mesa Boogie

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The Mesa Boogie Logo
The Mesa Boogie Logo

Mesa/Boogie (also known as Mesa Engineering) is a company in Petaluma, California that makes amplifiers for guitars and basses.

Mesa was started by Randall Smith as a small repair shop which modified Fender combos to give them more gain. Soon the word spread, and with users like Carlos Santana, Boogie became one of the big names in the industry. Other notable Boogie users include: Mark Tremonti from Alter Bridge, Allan Holdsworth, John Scofield, John Petrucci from Dream Theater, Buckethead, Metallica, Munky (from Korn), Tim Mahoney (from 311), Prince, Jerry Cantrell, Frank Zappa, Andy Timmons, Cannibal Corpse, Rammstein, Helmet, Tool, Trivium, Dir en grey, Gavin Rossdale and Nigel Pulsford of Bush, and Lamb of God.

Contents

[edit] History

Randall Smith, the creator of Mesa Boogie began his career at Prune music, a Chinese grocery store turned music shop. Working as a repair tech while his business partner and friend, David Kessner ran the front, Smith, quickly gained a reputation with the local San Fransisco Bay Area musicians. Smith, taking great pride in his work was soon seeing business from the likes of the Grateful Dead, Big Brother and Carlos Santana.

In 1969, Smith, as a joke, modified Barry Melton's (Country Joe and the Fish) Fender Princeton. He removed the standard 10 inch speaker and modified the chassis to fit the larger transformers that were needed by the 4-10 tweed Bassman, the circuit that he had added into the tiny 12 watt Princeton. Finally, Mounting a 12 inch JBL D-120, a popular speaker of the time, Smith had created what would be the first Boogie.

Randall Smith, needing to test his creation took the "hot-rodded" Princeton into the front store. Coincidentally, Carlos Santana was present and "wailed through that little amp until people were blocking the sidewalk". Impressed, Santana exclaimed to Smith, "Shit, man. That little thing really Boogies!" It was this statement that brought the Boogie name to fruition.

The MESA name came about through Smith's other job, rebuilding Mercedes engines and repairing houses. He needed an 'official' sounding name through which to buy Mercedes parts and building supplies. The name chosen was MESA Engineering because it was seemingly familiar with a professional air. It was originally capitalized but has been written as Mesa in recent years.

In 1971 Bassist, Patrick Burke addressed Randall in hopes of a custom Bass amp. Smith was persuaded and constructed the Snakeskin Mesa 450 - Smith's first bass amplifier and the first 'official' Mesa/Boogie product.

The real breakthrough came when Smith began his project of building a preamp for Lee Michaels to drive his new Crown DC-300 power amplifiers. Not knowing what signal was required to drive the power amps, Smith added an extra tube gain stage to the preamp to cover his bases, with 3 variable gain controls at different points in the circuit.

When Smith took the construction to Michaels and plugged it in, they were both disappointed, as they could only hear a very faint sound coming out of the speakers. They soon realized that the speakers had been plugged directly into the preamp, and rectified the situation by plugging them in correctly to the power-amp. After plugging everything together correctly, Michaels hit a power chord to test the new setup which "practically blew both of our [Michaels and Smith] bodies through the back wall".

Smith had discovered High Gain, purely by chance. He set about designing a Mesa/Boogie amplifier around the new principle, and in 1972 the Mark I Boogie was released.

He proceeded to evolve the Mark series, with the Mark II released in 1980. The 1980s saw Mesa instigating and leading in the 'Rack Revolution', with popular power amplifiers such as the M180/190 and Strategy series, as well as pre-amps such as the Quad and Studio.

Arguably the most desirable Boogie ever built was designed in 1983, the Mark II-C (and later the II-C+). The Mark series culminated in 1990 with the Mark IV, still one of the most advanced amplifiers in the world.

The '90s saw Mesa further capitalize on their successes in the '80s, with the launch of the smaller Dual Caliber series, and perhaps the most important amplifier of the '90s, the Rectifier series

The new millennium has not seen Mesa slow down, with new models like the 4-channel Road King and perhaps their best clean channel yet, the Lone Star and Lone Star Special.


[edit] Current Guitar Amplifiers

[edit] Mark IV models and Mark I re-issue

In the 17 years between 1972 and 1989, there were 7 different Mark series designs, culminating in the Mark IV in 1990. In the 17 years between 1990 and 2006 there have been no new models, and it is widely considered that the Mark series came to its conclusion with the Mark IV.

The Mark IV was one of the most advanced amplifiers of its time. It features 3 almost fully independent channels, a graphic equalizer, master volume and many pre- and power-amp options.

The 3 channels are labeled Rhythm 1, Rhythm 2 and Lead. Rhythm 1 and 2 include shared bass and middle controls, but other than this the channels are fully independent, with volume, gain and presence controls for each. The graphic EQ is footswitchable. The Mark IV was used by both James Hetfield and Kirk Hammett of Metallica on the 'Black' Album as well as many subsequent albums. It was them who popularized the V-shaped graphic equalizer with a 'scooped' midrange. Recently, Willie Adler and Mark Morton of Lamb of God have gained high acclaim while using these amplifiers.

It has the ability to footswitch between Simul-class and Class-A. It should be noted that the two outside power tubes can be substituted for EL34 valves, and all 4 tubes can be substituted for 6V6 valves.

The Mark I re-issue amplifier is a reproduction of the most popular Hun/Ree (100w with reverb) format of Mark I amplifier. It features a Celestion C90 speaker in its combo format, but is also available as a head.

[edit] Rectifier Series

The Rectifier series, commonly called "Recto" by modelling amplifiers, was instrumental to the success of de-tuned, 7-string nu- and heavy-metal in the 90's.

There are 3 variants: Single, Dual and Triple Rectifier.

The Single Rectifier amplifiers are rated at 50 watts and use a silicon diode rectifier, as opposed to tube rectification. Currently in production are the Single Rectifier Solo Head 50, the Rect-o-Verb 50 head, and the Rect-o-Verb 50 combo, which is fitted with a single 12" Celestion Black Shadow speaker. The Rect-o-Verb line features the same circuitry as the Single Rectifier Solo Head 50, but incorporates reverb. All Single Rectifier amplifiers feature a pair of 6L6 power tubes as well as five 12AX7 pre-amp tubes. A bias select switch, which allows the user to swap out the stock 6L6s for EL34s, was added in the "Series 2" versions of all amplifiers in the lineup. Also, the Reverb control knob was moved from the back to the front on the Rect-o-Verb models. The Single Rectifer amplifiers feature two fully independent channels.

The Dual Rectifier Solo Head is the most popular model of the Rectifier series. The name comes from its dual 5U4 rectifier tubes. Equipped with a quartet of 6L6 power tubes, the Dual Rectifier produces 100 watts. For a tighter sound, Dual Rectifier amplifiers allow users to utilize silicone diode rectification rather than tube rectification at the flip of a switch. Like in the Single Rectifier series, a bias select switch is standard. The Dual and Triple Rectifier amplifiers, which also feature 5 12AX7 pre-amp tubes, were originally designed with 2 channels, but recently were redesigned to incorporate a third channel. However, many people consider the older 2 channel models to have a superior sound.

Other than the Dual Rectifier Solo Head, there is the flagship Boogie model (replacing the Mark IV as the company's most advanced amplifier), the Dual Rectifier Road King. The Road King is well known for its vast number of options. It has an unprecedented 4 channels, each with the option of two different speaker outputs, two effects loops and Progressive Linkage, which allows five different power tube configurations (2x6L6, 2xEL34, 2x6L6+2xEL34, 4x6L6, 4x6L6+2xEL34). The amp also features Recto-Tracking, which automatically selects the appropriate rectification (single or dual 5U4s or silicon diode) depending on the power tube configuration.

While these myriad options provide ample tweaking opportunity and ultimate customization of tone, they are also the one drawback of the Road King - it's just too complex for some. In response, Mesa announced the release of the Dual Rectifier Roadster, a scaled down and less expensive version of the Road King with fewer options for the power amp and speakers, but retaining 4 independent channels.

The Triple Rectifier utilizes 6 6L6 power tubes for 150 watts output power, with 3 5U4 Rectifier tubes. It was designed with the tag line "When excess is barely enough", and used by bands such as Metallica, Limp Bizkit and KoЯn.

[edit] Lone Star Designs

The Lone Star amplifier was released in 2004 with the tag "Tone as big as Texas", and now comes in two variants, Classic and Special. In very generic terms, the Classic can be compared to vintage Fender amps, while the Special would be more in the range of an old VOX AC-30. However, since no two models of amp really sound alike or even operate the same, this is just to have some idea of an amp with the same type tubes as each of these.

Mesa/Boogie's description of the Classic is riddled with connotations to the sound of Texas blues, a style exemplified by Stevie Ray Vaughan, and this is the sound that the amplifier was designed to recreate. However, while its blues tones are widely reported as some of the best around, the success of the Lone Star has been its clean channel, widely regarded as one of, if not the best clean sound Boogie have ever produced. A measure of the quality of the sound is reflected in Carlos Santana's current amplifier rig - 3 70's Mark series Boogies, 2 Dumble Overdrive Special amplifiers and a 2004 Lone Star classic. The Lonestar features two channels, both capable of switching between 50 watt (tube or solidstate rectifier) and 100 watt (solid state rectifier).

The Lone Star Special was released in 2005, having been previewed first at a NAMM show. The differences are mainly in the power amp section, primarily the use of EL84 tubes rather than 6L6, giving a different sound than the "Classic" Lonestar. It also comes with 3 different wattage settings - 30, 15, and 5 watts. The 30 watt selection uses a solid state (diode) rectifier for a cleaner tone. The 15 and 5 watt settings use a tube (valve) rectifier for a warmer, "grittier", sound. The 5 watt setting uses a Patent Pending design (one of three in this amp) producing true Class A amplification, where only a single tube provides the amplification. Not only does this lower the wattage but also enables the tube to be saturated for an overdriven sound at much lower volume. In addition, the 2nd harmonic (an octave above) is not cancelled out, resulting in a richer overtone.

[edit] Stiletto Designs

The Stiletto "Stage I" was released in 2004, and is designed as a British-flavored variant of the Rectifier series. This was possibly in response to musicians using Marshall amplifiers combined with Mesa/Boogie amplifiers, and so to capture that market and what they had been "missing". Two models were released; the Deuce, and the Trident. Both come as standard with EL34 tubes and the option of tube or silicone diode rectification.

The Deuce is a 100w dual 5U4 rectified quad EL34 powered head, and is logically partnered with the popular Dual Rectifier.

The Trident is the highest output wattage of the Stiletto line, with a switchable 50w/150w power rating. It features six EL34 power tubes and three 5U4 rectifiers, and is logically partnered with the Triple Rectifier.

As of 2006, there are three variants, each having a Rectifier series counterpart; the Ace, Deuce, and Trident.

As of the 2006 model year, all previous models are generally referred to as "Stage I" versions, and have been replaced by the new "Stage II" versions. The Ace is the first of the "Stage II" series.

The Ace is a new model for 2006. It is a 50-watt amp that is available in the following formats; stand-alone head, 1x12 Closed Back Combo with one V30 Speaker and casters, 2x12 Closed Back Combo with two V30 Speakers and casters. They each have a single 5U4 rectifier tube, and are housed in a Lone Star-style cabinet. Its logical partner is the Single Rectifier Solo 50 and the Rect-O-Verb combo unit.

The new Ace model and the other "Stage II" models offer the following improvements as compared to the "Stage I" Stiletto amplifiers;

  • 5 Out of 6 Modes Re-voiced and Improved!
  • FAT and TITE Clean Modes Feature Enhanced Top End Sparkle and Transparency
  • Channel 1 & 2 CRUNCH Now Even Tighter and More Aggressive
  • All New FLUID-DRIVE Mode Features Even More Tightly Focused Gain
  • All New Lightening Fast Power Supply Tightens Low-End and Increases Mid Punch

[edit] Express

The Express line of guitar amplifiers was released in 2007, and has essentially replaced the F-Series in the Mesa Boogie line up. Although not directly descended from the F-Series, these two lines do have some features in common, some of which have been expanded upon in the Express line.

The Express line offers a new amplification technology developed by Mesa Boogie called “Duo-Class”. This technology offers the ability to run the power section of the amplifier in either true “class A” (single-ended) mode, or true “class AB” (push-pull) mode. This allows the operator to choose between running the amplifier at a reduced power output of 5 Watts (class A), or full power (class AB). When ran in 5 Watt (Class A) mode, the power section is operating on only one vacuum tube.

There are two different models offered in the Express line; the 5:25, which has a maximum power output of 25 Watts, and the 5:50 which has a maximum power output of 50 Watts. Curiously absent is a 100 Watt output model.

The 5:25 operates on two EL-84 tubes in the power section, and produces a maximum rated power output of 25 Watts. It is available as either a Short Chassis Head (Width 19in), or a 1x10 (Open Back) Combo unit containing one E50 Speaker, and comes with casters included.

The 5:50 operates on two 6L6 tubes in the power section, and produces a maximum rated power output of 50 Watts. It is available as a Medium Head (Width 22-7/8in), a Long Head (Width 26-1/4in), a 1x12 (Open Back) Combo unit containing one C90 Speaker, or a 2x12 (Open Back) Combo unit containing two C90 Speakers. Both Combo units come with casters included.


Common features among the models in the Express line are as follows:

Fixed Bias current

Five 12AX7 tubes

Two Fully Independent Channels with 4 Style Modes (Channel 1 = Clean or Crunch, Channel 2 = Blues or Burn)

Independent Gain, Treble, Mid, Bass, Reverb, Master and Contour Controls per Channel

Footswitchable Variable Contour Control on each channel, which Mesa Boogie says provides the power of their traditional 5-band graphic EQ from one rotary control

All-Tube, Long Spring Reverb

All-Tube FX Loop External Switching Jacks for Channel 1/2, Contour 1, Contour 2, Reverb

Three Button Footswitch (Channel 1/2, Reverb & Contour)

Slip Cover

[edit] Pre-amps

[edit] Triaxis™

A 5 tube preamp built to package all of the "Mark" series amps into one package. The Triaxis will give you the impeccable cleans of the Mark IIc and the scooped crunch of the Mark IV series. This amp has come under fire since the new millennium for being just a preamp and in need of being in a rack with a power amp to run with it, however to rack users, the triaxis still remains the number one preamp of choice for a wide pallette of crystal cleans and Mark series tones. John petrucci used this preamp to record overdriven tracks on Images and Words, as well as the side project cd "Liquid Tension Experiment 1". While lacking the tone of the rectifier series, it is widely accepted that the Triaxis and the Studio Preamp are the closest you can get to the Mark IIC+ in preamp form.

[edit] Rectifier Recording™ PreAmp

The MESA Boogie Rectifier Recording™ PreAmp is basically a Rectifier, designed for silent recording. It can also be used as the front end of a rack mounted Rectifier guitar setup.

[edit] Bass Amps

Mesa also makes Bass amps, although they are less popular than their guitar amps. Still, Mesa's bass amps are used by numerous big names, such as Les Claypool, Sir Paul McCartney, Ben Kenney of Incubus, John Campbell of Lamb of God and Cliff Burton.The current lineup of Bass Amps includes the simul-state Big Block series, M-Pulse, and Walkabout. Mesa's all tube bass amps: the Bass 400+, pushes 500 watts at peak through twelve 6L6 tubes which equals about 250 real world watts. The earlier Bass 400 had six 6550 tubes for about 300 watts RMS.

[edit] Discontinued Products

[edit] Blue Angels

The Mesa Blue Angel series was an offshoot of the Rectifier series, but sported single channels that thrived with jazzy clean tones, but gave an aggressive sound when turned loud. The amps were available in the form of a head, 1x12, 2x10, and 4x10. The amplifiers featured Mesa's Progressive Linkage technology, enabling the use of two 6V6 power tubes and four EL84 tubes. The amplifiers used a single 5U4 rectifier tube and 5 12AX7's.

[edit] Nomads

Mesa's Nomad series was produced until the early 2000's, and were considered a successor to the Caliber series of the 1990's. They boasted three channels with the option of a graphic equalizer on some models. It was sold in 45, 55, and 100 watt variations, and was phased out with the introduction of the F-series

[edit] Maverick

The Maverick was a Class-A, channel switching amp available in a 4x10 or 2x12 combo format, as well as a 35-watt head. The amp was aimed towards country and classic rock players, and was replaced by the Lone Star.

[edit] Formula preamp

The Formula was a rackmounted preamp, with MIDI switching. Dream Theater guitarist John Petrucci has once used this amplifier in his rig as a clean preamp. The clean channel is arguably second best to the newer lonestar amplifiers, however the gain channels left something to be desired. While putting out a tone reminiscent of the F series (a tone between the rectifiers and mark series) the preamp has been dismissed by many as being too loose and lacking in punch and gain clarity. There are a few home mod plans out there that apparently improve on the circuitry to make the gain channels more useable.

[edit] F-Series

The F-Series debuted in 2002 as the spiritual successors to the early '90s Dual Caliber series. There are 3 sizes, the F30 (30 watts), the F50 (50 watts) and the F100 (100 watts). As of the 2007 model year, the F-Series has essentially been replaced by the Express line of Amplifiers.

The smallest amplifier in the series is the F30. Rather than 6L6 tubes, it is built around two (2)EL84s. It is available in a 'shorthead' version or as a 1x12 combo.

The F50 has been the most critically acclaimed model, featuring two (2) 6L6 tubes in the power amp and using solid state rectification. It is available as a 'mediumhead' version, or a 1x12 'widebody' combo.

The F100 is a similar setup, but with a quartet of 6L6s for 100w output, . It is available as a 2x12 combo or in a 'longhead' version.

The F-Series was dropped in 2007 with the introduction of the Express line.

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