Marshall Class 5 preset

Verified · 94/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Class 5 is a 5-watt all-valve combo from 2009, built for plexi-style overdrive at home volumes. One input feeds an ECC83 gain stage and Volume, a cathode follower drives the Treble, Middle and Bass stack, and two more ECC83 stages drive a single cathode-biased EL84 in class A with no negative feedback. The output board adds a headphone jack and a dummy-load switch that silences the speaker, with a silicon bridge rectifier.

• Years produced: 2009–2012
• Made in: UK
• Wattage: 5W
• Channels: 1
• Preamp tubes: 2× ECC83
• Power tubes: 1× EL84

Known for: Joe Bonamassa.

Tags: british, el84, class-a, low-wattage, practice, crunch.

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.