What tubes does the Mesa Boogie Boogie 50Cal use?

The Mesa Boogie Boogie 50Cal uses 3× 12AX7 preamp tubes and 2× 6L6GC power tubes.

When was the Mesa Boogie Boogie 50Cal produced?

The Mesa Boogie Boogie 50Cal was produced 1985–1995.

Mesa Boogie Boogie 50Cal preset

Close · 62/100 confidence. Most values readable. Minor gaps filled by inference from similar circuits.

The 50 Caliber sits between Mesa's 22-watt and full-size Mark amplifiers, offering a practical wattage for gigging musicians who want Mesa's cascading gain character without the full weight and volume of a 100-watt head. Its single-channel design keeps the signal path simple and focused, emphasizing touch sensitivity and dynamic response. It earned a reputation as an honest working musician's amp — reliable, great-sounding, and unpretentious.

Years produced: 1985–1995
Made in: USA
Wattage: 50W
Channels: 1
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.