Hughes & Kettner Switchblade 50 Combo - Ultra preset

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

The Switchblade 50 is the 50-watt 1x12 combo version of Hughes & Kettner's all-tube, MIDI-programmable Switchblade, built around two ECC83s and two EL34s. Its four channels (Clean, Crunch, Lead and Ultra) each have gain with a built-in boost at the top of the knob, bass, mid, treble, presence and volume, all storable as presets along with built-in reverb, delay and modulation. An effects loop completes it.

• Wattage: 50W
• Channels: 4
• Preamp tubes: 2× ECC83
• Power tubes: 2× EL34

Tags: german, modern, el34, mid-wattage, multi-channel, high-gain.

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.