Marshall 8240 Stereo Chorus Reverb 2x40W - Clean preset

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

The Marshall 8240 is a 2×40W solid-state stereo combo with built-in chorus and reverb, the smaller sibling of the 8280. It provided a cost-effective stereo guitar solution for players who wanted spatial effects built into their amplifier.

• Years produced: 1987–1994
• Made in: UK
• Wattage: 80W
• Channels: 2
• Preamp tubes: solid-state
• Power tubes: solid-state

Tags: solid-state, stereo, chorus, 80s.

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.