What tubes does the Mesa Boogie Studio .22+ - Lead use?

The Mesa Boogie Studio .22+ - Lead uses 5× 12AX7 preamp tubes and 2× EL84 power tubes.

When was the Mesa Boogie Studio .22+ - Lead produced?

The Mesa Boogie Studio .22+ - Lead was produced 1988–1993.

Mesa Boogie Studio .22+ - Lead preset

Verified · 89/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Studio .22+ is the updated Studio .22, a compact 22-watt Mesa/Boogie combo. A paralleled 12AX7 input feeds a Boogie treble, bass and middle stack and Volume; from the footswitch, LDRs bring in a cascaded lead stage with its own Lead Master and a treble shift. A Master, a series effects loop, valve spring reverb and a five-band graphic EQ follow, and a 12AX7 phase inverter with Presence drives two fixed-bias EL84s, with a direct output.

Years produced: 1988–1993
Made in: USA
Wattage: 22W
Channels: 2
Preamp tubes: 5× 12AX7
Power tubes: 2× EL84

Tags: american, crunch, low-wattage, two-channel.

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.