Hughes & Kettner Attax 100 - Crunch preset

Verified · 84/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Hughes & Kettner Attax 100 is a 100-watt hybrid combo from 1993 that pairs an op-amp preamp with a single ECC83 tube stage and a solid-state power amp. Clean and Crunch share one bass, mid and treble section, with a clean volume and crunch gain, while Lead has its own gain, EQ and master, with the ECC83 in the drive path. Spring reverb, an effects loop with mix control and an optional MIDI switching module complete it.

• Made in: Germany
• Wattage: 100W
• Channels: 3
• Preamp tubes: 1× ECC83

Tags: german, hybrid, reverb, multi-channel, high-wattage, crunch.

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.