What tubes does the Metaltronix M1000Preamp use?

The Metaltronix M1000Preamp uses 4× 12AX7 preamp tubes.

When was the Metaltronix M1000Preamp produced?

The Metaltronix M1000Preamp was produced 1987–1995.

Metaltronix M1000Preamp preset

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

Metaltronix was an American high-gain preamp company of the late 1980s catering specifically to the heavy metal market with massively saturated tube preamp circuits. The M1000 Preamp was designed by Jeff Porcaro-era session players and became associated with the extreme gain requirements of thrash and speed metal.

Years produced: 1987–1995
Made in: USA
Channels: 2
Preamp tubes: 4× 12AX7

Tags: american, modern, high-gain.

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.