Heathkit AA-30 preset

Verified · 90/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The AA-30 is a Heathkit stereo tube power amplifier kit — a hi-fi amplifier, not a guitar amp. Each side uses a 7199 pentode amplifier and triode split-load inverter driving a push-pull pair of EL84s, about 14 watts per side, with a shared GZ34 rectifier. A compact EL84 design with a clean, detailed voice.

• Made in: USA
• Wattage: 28W
• Channels: 1
• Preamp tubes: 2× 7199
• Power tubes: 4× EL84

Tags: american, vintage, clean, el84, stereo, power-amp, diy.

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.