Mesa Boogie Lone Star Special - Clean preset

Verified · 91/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Lone Star Special is the EL84 version of the Lone Star, drawn in 2004. Channel 1 is a clean channel with gain, treble, middle and bass; channel 2 adds a switchable Drive stage with a Thick/Normal/Thicker voicing switch and its own EQ. Each channel has its own reverb level, master and presence, with a valve-buffered effects loop and solo level. Four cathode-biased EL84s give 5, 15 or 30 watts, from a 5Y3 valve or diode rectifier.

• Years produced: 2005–2020
• Made in: USA
• Wattage: 30W
• Channels: 2
• Preamp tubes: 5× 12AX7
• Power tubes: 4× EL84

Known for: Captain Kirk Douglas.

Tags: american, clean, crunch, el84, mid-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.