What tubes does the Fender Bantambass Cfa7003 use?

The Fender Bantambass Cfa7003 uses 2× 12AX7 preamp tubes and 2× 6L6GC power tubes.

When was the Fender Bantambass Cfa7003 produced?

The Fender Bantambass Cfa7003 was produced 1969–1972.

Fender Bantambass Cfa7003 preset

Close · 60/100 confidence. Most values readable. Minor gaps filled by inference from similar circuits.

The Fender Bantam Bass (CFA7003) is a silverface-era bass amplifier head designed for the working bassist who needed reliable clean amplification without the size of the full Bassman. The CFA7003 circuit prioritises low-end extension and clean headroom over guitar-specific features, with a single channel and straightforward tone controls. Today it is occasionally repurposed by guitar players seeking an unconventional clean Fender platform.

Years produced: 1969–1972
Made in: USA
Wattage: 45W
Channels: 1
Preamp tubes: 2× 12AX7
Power tubes: 2× 6L6GC

Tags: american, 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.