Fender Acoustasonic Junior - Instrument preset

Verified · 90/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Acoustasonic Junior is a late-1990s solid-state Fender acoustic guitar amp. The instrument channel has gain, bass, mid and treble, a sweepable feedback notch and a string dynamics control; the microphone/line channel has gain, bass and treble with phantom power and a phase switch. A bucket-brigade chorus with rate and depth, spring reverb and a stereo effects loop feed two 40-watt transistor power amps, one per side. It is built for acoustic guitar and vocals, not electric guitar tone.

Tags: acoustic, solid-state, stereo, clean, reverb, 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.