What tubes does the Ampeg B-500DR - Channel B use?

The Ampeg B-500DR - Channel B uses Solid-state preamp tubes and Solid-state power tubes.

When was the Ampeg B-500DR - Channel B produced?

The Ampeg B-500DR - Channel B was produced 2002–2008.

Ampeg B-500DR - Channel B preset

Close · 75/100 confidence. Most values readable. Minor gaps filled by inference from similar circuits.

The Ampeg B-500DR is a solid-state bass head delivering 500 watts with onboard digital effects. Aimed at professional bassists seeking high output, modern features, and the Ampeg brand's tonal heritage, it incorporated digital reverb and other effects alongside traditional Ampeg EQ controls. The 500-watt output made it suitable for large venues and demanding live applications.

Years produced: 2002–2008
Made in: USA
Wattage: 500W
Channels: 1
Preamp tubes: Solid-state
Power tubes: Solid-state

Tags: american, modern.

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.