ENGL Special Edition E670 - Extreme preset

Verified · 88/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The ENGL Special Edition E670 is a 100-watt, four-channel German high-gain head with Clean, Crunch, Lead I and Lead II channels, each with its own gain and volume, under relay and microcontroller switching. It adds a tube-driven boost, a noise gate, two switchable effects loops, two masters and two presence settings. An ECC83 long-tailed-pair inverter drives four 6L6GC output valves, with bias selector switches for an alternative valve type.

• Made in: Germany
• Wattage: 100W
• Channels: 4
• Preamp tubes: 5× ECC83
• Power tubes: 4× 6L6GC

Known for: Marty Friedman, Steve Morse.

Heard on: Inferno — Marty Friedman (2014).

Tags: german, modern, high-gain, metal, multi-channel, 6l6, high-wattage.

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.