What tubes does the Vox AC30 Bass use?

The Vox AC30 Bass uses 2× ECC83 preamp tubes and 2× EL34 power tubes.

When was the Vox AC30 Bass produced?

The Vox AC30 Bass was produced 1964–1967.

Vox AC30 Bass preset

Close · 65/100 confidence. Most values readable. Minor gaps filled by inference from similar circuits.

The Vox AC Bass amplifier is a bass-guitar-specific derivative of the AC series platform, designed to handle the extended low-frequency content of bass guitar while retaining a tube-driven signal path. The circuit is optimised with increased bass headroom and a modified tone stack compared to the guitar AC series. It was aimed at the same market as the Fender Bassman in the mid-1960s UK bass market.

Years produced: 1964–1967
Made in: UK
Channels: 1
Preamp tubes: 2× ECC83
Power tubes: 2× EL34

Tags: british.

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.