What tubes does the Ampeg B-22X - Channel 1 use?

The Ampeg B-22X - Channel 1 uses 3× 12AX7 preamp tubes and 2× 6L6 power tubes.

When was the Ampeg B-22X - Channel 1 produced?

The Ampeg B-22X - Channel 1 was produced 1967–1971.

Ampeg B-22X - Channel 1 preset

Close · 78/100 confidence. Most values readable. Minor gaps filled by inference from similar circuits.

The B-22X is a compact bass amplifier from Ampeg's late 1960s lineup. Channel 1 delivers warm, punchy bass tone from the 6L6 output stage. The X designation indicates an extended treble response circuit, adding note clarity without sacrificing the fundamental warmth of the Ampeg bass sound.

Years produced: 1967–1971
Made in: USA
Wattage: 22W
Channels: 2
Preamp tubes: 3× 12AX7
Power tubes: 2× 6L6

Tags: bass, american, vintage, low-wattage, clean.

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.