Music Man 2475-130 / 2275-130 - Channel 1 preset

Verified · 83/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The 2475-130 and 2275-130 are 130-watt, two-channel Music Man amps. Each channel has an op-amp preamp with bass/mid/treble and a bright switch (the 2275 omits the mid and bright). They add spring reverb, transistor tremolo, master volume and a Deep switch. Four 6CA7/EL34 output tubes are driven by a 12AX7 inverter in early versions and by transistors in later ones.

• Made in: USA
• Wattage: 130W
• Channels: 2
• Power tubes: 4× 6CA7

Known for: Mark Knopfler, Eric Clapton, Joe Perry.

Tags: american, vintage, hybrid, clean, reverb, tremolo, el34.

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.