Music Man Bulletins All preset

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

Music Man Service Bulletins are official manufacturer technical documents covering the full range of Music Man amplifiers produced during the 1970s and early 1980s. These bulletins provide authoritative circuit information, component values, and revision histories for the hybrid tube-preamp/solid-state-power amplifiers developed with Leo Fender's involvement. They are essential reference material for technicians servicing or restoring the Music Man line.

• Years produced: 1974–1983
• Made in: USA

Tags: american, vintage.

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.