Music Man 2475-150 / 2275-150 - Channel 2 preset

Verified · 85/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The 2475-150 (four inputs) and 2275-150 (two inputs) are 150-watt, two-channel Music Man heads built for high-headroom clean tone on large stages. Each channel has high and low inputs into an op-amp stage with passive treble, bass and midrange, a volume, a bright switch and a transistor soft limiter. The channels mix into a Master and a Deep switch, and transistor drivers cathode-drive four 6L6GCs at about 700 volts, with no preamp valves.

• Made in: USA
• Wattage: 150W
• Channels: 2
• Power tubes: 4× 6L6GC

Tags: american, vintage, clean, high-wattage, two-channel.

Schematic-derived preset files for the Neural DSP Quad Cortex and 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.