What tubes does the Mesa Boogie Road King II use?

The Mesa Boogie Road King II uses 5× 12AX7 preamp tubes and 4× 6L6 power tubes.

When was the Mesa Boogie Road King II produced?

The Mesa Boogie Road King II was produced 2004–2017.

Mesa Boogie Road King II preset

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

The Road King II is a 120-watt four-channel touring powerhouse with per-channel rectifier selection (tube or silicon) and wattage switching. It combines Rectifier aggression with Mark series versatility, making it a do-everything amp for professional touring.

Years produced: 2004–2017
Made in: USA
Wattage: 120W
Channels: 4
Preamp tubes: 5× 12AX7
Power tubes: 4× 6L6

Tags: american, high-gain, versatile, rectifier, touring.

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.