Grommes LJ-2 preset

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

A small Grommes tube amplifier with mic, magnetic and crystal inputs, a public-address or phono-type unit rather than a guitar amp. A 6SC7 preamp and a 6SL7 amplifier/phase inverter drive two 6V6GTs, with a 5Y3GT rectifier. Its 6V6 push-pull output is similar to a small guitar combo, so it converts well.

• Made in: USA
• Wattage: 10W
• Channels: 1
• Preamp tubes: 1× 6SC7, 1× 6SL7
• Power tubes: 2× 6V6GT

Tags: american, vintage, 6v6, low-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.