Who famously used the Acoustic 360?

Jaco Pastorius, John Paul Jones, Larry Graham, and John McVie are among the notable players associated with the Acoustic 360.

Acoustic 360 preset

Q: What recordings feature the Acoustic 360?

Portrait of Tracy by Jaco Pastorius (1976), Soul Sacrifice (Live at Woodstock) by Santana (1969).

Verified · 88/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Acoustic 360 is the solid-state bass preamp head that, paired with the 361 cabinet's built-in 200-watt RMS power amp and folded-horn 18-inch speaker, defined the late-1960s and 1970s rock bass sound. It has high and low gain inputs, a Bright switch, Volume, Treble and Bass, and the Variamp, a selectable-frequency boost/cut with Range and Effect controls, plus a footswitchable fuzz (Attack, Gain) and a tuning fork.

Made in: USA
Wattage: 200W
Channels: 1

Known for: Jaco Pastorius, John Paul Jones, Larry Graham, John McVie.

Heard on: Portrait of Tracy — Jaco Pastorius (1976); Soul Sacrifice (Live at Woodstock) — Santana (1969).

Tags: american, bass, solid-state, high-wattage.

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.