Park 1210/1240 Rock preset

Verified · 82/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Park 1210 Rock head and 1240 combo are 1980 amps from Park, the Marshall-built sister brand. The high-gain input adds an extra ECC83 stage with its own gain control, switchable by footswitch, ahead of the Volume; a second ECC83 drives a Marshall-style treble, bass and mid stack with no cathode follower. An ECC83 long-tail-pair inverter with Presence feeds a ganged Master placed after the inverter, driving four fixed-bias EL34s or KT77s from a silicon bridge supply.

Tags: british, crunch, el34, high-wattage.

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.