What tubes does the ADR Sound Sense Ac301978 use?

The ADR Sound Sense Ac301978 uses 3× ECC83 preamp tubes and 4× EL84 power tubes.

When was the ADR Sound Sense Ac301978 produced?

The ADR Sound Sense Ac301978 was produced 1978.

ADR Sound Sense Ac301978 preset

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

The ADR Sound Sense AC30 1978 documents the Vox AC30 circuit as manufactured in 1978, a transitional period in the amp's history when Vox had passed through several ownership changes affecting build quality and circuit topology. The 1978 AC30 reflects the JMI/Rose-Morris production era, retaining the EL84 output stage and characteristic British chime but with some differences from the golden-era 1960s versions. ADR Sound Sense's year-specific documentation helps builders and technicians understand these production period variations.

Years produced: 1978
Made in: UK
Wattage: 30W
Channels: 2
Preamp tubes: 3× ECC83
Power tubes: 4× EL84

Tags: british, vintage, 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.