Suhr Badger 18 preset

Verified · 86/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Suhr Badger 18 is an 18-watt, single-channel head and combo built on two cathode-biased EL84s and three 12AX7s, with a 5Y3GT tube rectifier. One Gain control sets two cascaded preamp stages at once, ahead of a passive Bass, Middle and Treble stack. Power Scaling lowers the voltage feeding the output tubes so the amp can be pushed into power-amp crunch at anything from full power down to about one watt, and a Drive control sets the level into the power section. A tube-buffered effects loop rounds it out.

• Made in: USA
• Wattage: 18W
• Channels: 1
• Preamp tubes: 3× 12AX7
• Power tubes: 2× EL84

Tags: american, boutique, el84, low-wattage, crunch, power-scaling, effects-loop.

Schematic-derived preset files for the Neural DSP Quad Cortex and 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.