Premier Model 88 preset

verified · 80/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Premier Model 88 is a 1959 tube amplifier from Premier, the New York brand of the Sorkin/Multivox company, built in two chassis: a top-panel preamp and a lower power chassis. In the lower chassis a 12AU7 gain stage feeds a 12AU7 phase inverter driving two 6L6s in push-pull with feedback, on a 5U4 rectifier. A tremolo footswitch socket connects to the top panel, and a frequency-dividing network splits the output between low and high speakers on three-speaker models.

Tags: american, vintage.

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.