What tubes does the Mesa Boogie 22 Caliber+ use?

The Mesa Boogie 22 Caliber+ uses 3× 12AX7 preamp tubes and 2× 6L6GC power tubes.

When was the Mesa Boogie 22 Caliber+ produced?

The Mesa Boogie 22 Caliber+ was produced 1987–1994.

Mesa Boogie 22 Caliber+ preset

Verified · 80/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The 22 Caliber+ added a second channel to Mesa's small-format 22-watt platform, allowing players to switch between a clean and a driven voice without tap-dancing on pedals. Both channels share the characteristic Mesa compression and note bloom that made the larger Mark series famous. It found a following among touring musicians who needed reliable tone in a compact, road-worthy package.

Years produced: 1987–1994
Made in: USA
Wattage: 22W
Channels: 2
Preamp tubes: 3× 12AX7
Power tubes: 2× 6L6GC

Tags: american, clean, crunch.

Schematic-derived preset files for 16 Fractal and Line 6 modelers: Axe-Fx II/XL/XL+, Axe-Fx III, FM3, FM9, and the full Helix family (Floor, LT, Rack, HX Stomp, HX Stomp XL, Native).

Gridleak extracts amp parameters from original circuit schematics using AI vision — component values, gain staging, tone stack topology, tube types — then generates native preset files for every supported modeler. Every extraction is scored 0–100 and the score is published.