Orange Otr 120 preset

Verified · 80/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Orange OTR-120 is a 120-watt amplifier from the OR series range, sharing the core circuit DNA of the OR120 while incorporating the OTR-series styling and control layout that Orange produced through the mid-to-late 1970s. Four EL34 tubes deliver the brand's signature combination of dense harmonic saturation and powerful bottom end, making the OTR-120 a capable stage amplifier for hard rock and early heavy metal applications. Its single-channel design and straightforward controls reflect the era's preference for an amplifier that simply did one thing consistently and with authority.

Tags: british, crunch, vintage.

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.