What tubes does the Ampeg V-4BH Bass Amp - Normal use?

The Ampeg V-4BH Bass Amp - Normal uses 3× 12AX7 preamp tubes and 4× 6L6GC power tubes.

When was the Ampeg V-4BH Bass Amp - Normal produced?

The Ampeg V-4BH Bass Amp - Normal was produced 2013–present.

Ampeg V-4BH Bass Amp - Normal preset

Verified · 82/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Ampeg V-4B AVA (American Vintage Ampeg) represents a reissue or updated variant of the classic V-4B bass head, returning to the original 100-watt all-tube 6L6GC circuit that made the V-4B a cult classic. Ampeg reissued the V-4B in 2013 to meet ongoing demand from bass players who prized its musical tube overdrive and mid-forward tone as an alternative to the louder, cleaner SVT. The AVA designation indicates American Vintage Ampeg heritage, reflecting the company's effort to honor its most celebrated vintage designs.

Years produced: 2013–present
Made in: USA
Wattage: 100W
Channels: 1
Preamp tubes: 3× 12AX7
Power tubes: 4× 6L6GC

Tags: american.

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.