Up for grabs is an absolute titan of the rack-gear golden era: a first-generation Mesa Boogie Stereo Simul-Class 2:Ninety power amplifier. Sporting an incredibly low serial number (N-0224), this first-year 1992 production unit is the definitive companion for a TriAxis, Kemper, Quad Cortex, or any high-end preamp setup.

Freshly Serviced & Retubed

This unit has just been professionally gone through and serviced to ensure it works.

It features a brand new, premium matched set of Harma 6L6GC power valves, meaning you are getting maximum headroom, pristine glass, and devastating low-end punch without needing to invest in costly maintenance down the line.

What Makes the 2:Ninety Special?

Unlike standard power amps, the 2:Ninety combines Mesa's patented Simul-Class circuitry (running tubes simultaneously in Class A and Class A/B) with Smart Power switching capabilities. When linked to a compatible preamp, you can trigger its onboard voicing modes:

• Deep: Extends the low-end for massive, tight chugs.
• Half-Drive: Cuts power for early power-amp clip and saturation.
• Modern: Sharpens attack and presence for aggressive tracking.

Condition: Good. For an authentic 90s piece of pro rack gear, this unit is in good shape with some rack rash typical of gear this old.

Note on Photos: please inspect them closely as they form part of the physical description.

Technical Specifications:

• Year of Manufacture: 1992 (Early 1st Generation, Serial N-0224)
• Power Output: 90 Watts per channel (Stereo, 180W Total)
• Power Tubes: 8 x Brand New Harma 6L6GC
• Preamp Tubes: 3 x 12AX7
• Rack Size: 2U Space
• Weight: ~35 lbs (~16 kg)
• Includes: Attached power cable.