What tubes does the Garnet Reverb Unit 2Nd use?

The Garnet Reverb Unit 2Nd uses 2× 12AX7 preamp tubes.

When was the Garnet Reverb Unit 2Nd produced?

The Garnet Reverb Unit 2Nd was produced 1966–1974.

Garnet Reverb Unit 2Nd preset

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

The Garnet Reverb Unit (2nd version) is a standalone tube-driven spring reverb unit designed to add reverb to Garnet amplifiers that lacked it onboard. As a second-generation design, it incorporates improvements to the drive circuit and spring tank recovery for smoother, more musical reverb compared to the original version.

Years produced: 1966–1974
Made in: Canada
Channels: 1
Preamp tubes: 2× 12AX7

Tags: vintage, american.

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.