Fender Frontman 25B preset

Verified · 92/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Frontman 25B is a 1999 solid-state Fender bass practice amp. High and Low inputs feed an op-amp preamp with a Volume control and three active EQ bands (Low, Mid and Hi), followed by an effects loop (preamp out/power amp in), tape inputs for playing along, a diode-switched output limiter and a TDA1514 chip power amp rated 25 watts into 8 ohms, with a headphone jack that mutes the speaker.

• Wattage: 25W
• Channels: 1

Tags: bass, solid-state, practice, mid-wattage, 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.