What tubes does the Marshall AS50R - Microphone use?

The Marshall AS50R - Microphone uses solid-state preamp tubes and solid-state power tubes.

When was the Marshall AS50R - Microphone produced?

The Marshall AS50R - Microphone was produced 2002–2012.

Marshall AS50R - Microphone preset

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

The Marshall AS50R is an acoustic guitar amplifier combo, designed specifically for amplifying acoustic-electric instruments with clean, transparent preamp channels and built-in reverb. Unlike Marshall's electric guitar amps, it prioritises natural acoustic reproduction and features a tweeter for extended high-frequency response.

Years produced: 2002–2012
Made in: UK
Wattage: 50W
Channels: 2
Preamp tubes: solid-state
Power tubes: solid-state

Tags: acoustic, solid-state, reverb.

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.