Ceriatone Tweed Bassman 5F6-A All Access - Bright preset

Verified · 85/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

Ceriatone's Tweed Bassman 5F6-A All Access follows Fender's 5F6-A: a 12AY7 input, cathode-follower-driven bass/middle/treble stack with presence, long-tail phase inverter and two 6L6GCs on a GZ34. All Access switches add split/shared V1 cathode, cathode/fixed bias and tube/solid-state rectification. The 5F6-A is the circuit Marshall's first amps grew from, and it is loved for fat, gritty guitar breakup.

• Made in: Malaysia
• Wattage: 45W
• Channels: 2
• Preamp tubes: 1× 12AY7, 2× 12AX7
• Power tubes: 2× 6L6GC

Tags: tweed, 6l6, boutique, hand-wired, two-channel, mid-wattage.

Schematic-derived preset files for the Neural DSP Quad Cortex and 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.