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Mesa Boogie Triaxis Programmable Preamp - Used  From Mesa Boogie

All tube recording preamplifier - an arsenal of the most powerful guitar tones available in the world


Our product photos are the actual, specific serial number for sale!

This specific item was photographed by us here in Durham, North Carolina. We are a very small team dedicated to providing you the most accurate photos possible, through our obsessive focus - individually photographing nearly everything that comes through the door. Questions about what you see? Want more information, photos, or just a friendly conversation with someone that cares and who has actually had their hands on this exact item? Contact us now!

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Sound Pure's dedication to pre-owned products is unprecedented in the industry. We are a small team of dedicated experts that buys, trades, and consigns. We are trusted by customers all over the world. Our curated collection, is thoroughly tested and inspected by some of the best in the business. Our inventory is constantly changing, ever-evolving, with some items sold before reaching the website. Looking for something specific? Have questions about this product's condition or history? Want more photos, or to simply chat with an expert who's had his hands on this actual piece? Contact us now.
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Mesa Boogie

"Gone, Baby, Gone"

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What We Think

Condition: Used, Good

A "greatest hits" of Mesa tones - the Triaxis is a legendary preamp known for it's incredible versatility and quality. 

There is a fair amount of rack wear on the top and bottom of the unit (pictured), still has the plastic protector intact on the face. Used mainly as a backup and has low hours on the tubes.


Manufacturer's Description from Mesa Boogie

Digital disbelievers scoffed at the very idea of packing five 12AX7’s and 25 years of tube tone heritage into one rack space of pure magic...but there they are...five little tone bottles, glowing quietly-all too ready to rock the house. Eight separate modes deliver the elusive creamy gain of the Mark I, the heralded focus of the Mark IIC+, the scooped Rhythm of the Mark IV™, and a modified British lead mode. But these are just a few of the classic sounds at your fingertips.

Most programmable preamps start with a digital control circuit and then adapt the audio to fit the confines of the digital framework. We weren’t about to compromise the audio just to take the short cut. Instead, our three years of research produced a patented technology, which preserves in every nuance and detail of the exact audio elements that made these classic sounds in the first place. The digital circuitry was forced to serve—not dictate the tone. Each control’s up and down keys work much like an old style knob...all parameters are displayed and active all the time. To you, that means no scrolling to find your Treble on the gig. You don’t have to wonder how your Bass and Mid are set, you can see them from across the stage.

You can store your favorite sounds into 90 user presets and these can be mapped to any of the 128 midi program locations. To get you started, we’ve included 20 defeatable / retrievable factory presets, 10 of which can demonstrate SmartPower™ voicing options where TriAxis controls our power amps that feature SmartPower, switching their capabilities to further enhance individual modes and sounds. Make no mistake—TRIAXIS IS an arsenal of the most powerful guitar tones available in the world today...and that’s without using the Continuous Control function. But don’t believe us, just listen to the likes of John Petrucci and James Hetfield who have used the TriAxis for decades.


Rhythm/Green - Vintage Fat Clean (Mark I, Black-face)

Rhythm/Yellow - Modern Hyper-Clean (Mark IV)

Lead 1/Green - Vintage Mark I Lead

Lead 1/Yellow - Vintage Mark 1 Gain Boost

Lead 1/Red - Classic British Lead

Lead 2/Green - Medium Boogie Gain

Lead 2/Yellow - Classic Boogie Lead (Mark IIC+/Mark IV)

Lead 2/Red - Searing Boogie Lead

Mesa Boogie

About Manufacturer

Forty-five years and thousands of satisfied customers later, MESA/Boogie® Ltd. hand-builds the fifth generational offspring of that pivotal amplifier (and many more) now known around the globe as the MARK I Boogie®; the world’s first high gain, high power, compact 1x12 amplifier. That revolutionary little combo is the “missing link” in amp design... the pivotal nexus between Vintage and Modern guitar amplifiers. When it comes to amplified guitar, there’s really just two epochs… before Boogie, and after Boogie.


Tubes: (5) 12AX7

Channels and Modes: 90 User Preset & 128 Midi Prgm Locations / 8 Modes

Weight: 9.5 pounds

Height: 1 rack unit

Depth: 14.3 inches

Input Impedance: 1 Mega-ohm

Power Requirements: (from AC mains) 30 watts





Owners Manual