Mesa Boogie Mark I Reissue 1x12 Combo - Cream / Tan Grille

Prepare for launch. This Mesa/Boogie Mark I Reissue Combo—finished in elegant cream tolex with a tan grille—is a stellar relic from the early days of high-gain discovery. Over 20 years in orbit, this amp shows honest signs of wear, the kind you’d expect from a piece of gear that’s traveled galaxies of stages and studios. It functions perfectly and sounds absolutely cosmic.

The Mark I is legendary not just on Earth, but across the known tone-iverse. Plug into Input 2, and you’re instantly transported back to the BG era: Before Gain—a shimmering, clean, star-bright rhythm sound that defined what an amp was. But flip to its high-gain heart, and you unlock the historic moment that reshaped the guitar’s destiny: the discovery of the Bone Tone. This was Day One of AD: After Distortion, when the Mark I dared to challenge the saxophone for lead supremacy and won.

Piloted by luminaries like Carlos Santana, Larry Carlton, Robben Ford, Eric Johnson, Keith Richards, and Pete Townshend, this amp didn’t just make music—it created a gravitational shift. Mesa, true to their founding principles of uncompromising quality and customer devotion, kept the production small and the craftsmanship stellar. Fewer than 3,000 original units ever launched into the world.

This modern reissue remains a faithful recreation of that legendary machine—frozen in time yet still very much alive. With a few subtle upgrades (a variable gain loop and Tweed™ Power for a softer, brown-dwarf vibe), the spirit of the original Mark I burns bright. This configuration features the classic Hun/Ree setup (100 watts with reverb) through the traditional small-format C90 speaker, delivering the sound that put Mesa/Boogie on the cosmic map.

If you missed the first flight, don’t worry—history loops just like the best delay trails. This is your chance to command one of the most influential amplifiers in the galaxy.

Condition: Excellent working order. Cosmetic wear consistent with a well-traveled, 20+ year old starship.
Sound: Stellar. Singing sustain, shimmering cleans, and the Bone Tone that sparked a new era.

Strap in. Ignite. Explore. At Interstellar Guitars, Tone transcends dimensions.

Format: 1x12 Combo
Channels/Modes: 1 Channels / 2 Modes
Mode Voicings: Two Inputs, Input 1 = Original Multi-Stage "Cascading" Gain Circuit through Volume 1 & 2. Input 2 = Normal Gain through Volume 2 only
Channel Controls: Vol 1, Vol 2, Master, Treble, Middle, Bass
Power Tube Type: 4x 6L6 
Wattage: 100 watts / 60 Watts with half power switch (Full Power / "Variac" Tweed Switch
Rectifier Type: Silicon Diode Rectification.
Bias: Fixed Bias  
Power Amp Details:  Class A/B 
Preamp Tubes: 4x 12AX7, 1xAT7
Effects Loop: Fully Buffered Series FX Loop w/Level Control 
Reverb: All-Tube, Long Spring Reverb 
Speaker Outputs: One 8 Ohm and Two 4 Ohm
Speaker: Celestion C90 (Black Shadow)
Chassis Material: Aluminum
Cabinet Material: Marine Grade Baltic Birch
Dimensions: 11 1/4" H x 22 7/8" W x 11 3/4" D
Weight: 38Lbs