ENGL Thunder 50 Reverb E320 - Lead preset

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

The ENGL Thunder 50 Reverb (E320) is a 50-watt German two-channel amp with relay switching between clean and lead, an Accutronics spring reverb and an FX loop. Four ECC83s drive a pair of 5881s, giving a warmer, less extreme voice than ENGL's high-gain flagships.

• Made in: Germany
• Wattage: 50W
• Channels: 2
• Preamp tubes: 4× ECC83
• Power tubes: 2× 5881

Tags: german, two-channel, reverb, crunch, 6l6, mid-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.