Matchless Clubman 35 preset

Verified · 90/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Clubman 35 is a 35-watt single-channel Matchless head from the early 1990s with an unusual preamp. Two inputs feed a paralleled 12AX7 stage, then a passive Bass and Treble stack before a 6SH7 pentode gain stage and the Volume control, followed by an effects loop. A 12AX7 long-tail phase inverter with Master and Brilliant controls drives two cathode-biased EL34s with no negative feedback, from a GZ34/5AR4 rectifier with a choke-fed supply.

Known for: Robert Cray, Rich Robinson, Alex Lifeson, Jimmie Vaughan, Kelly Jones, Doug Pettibone, Clint Chandler, Drew Brown, Tim Pierce.

Tags: american, boutique, el34, mid-wattage, hand-wired.

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.