Peavey TKO 80 preset

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

The Peavey TKO 80 is a 1990 solid-state bass combo. High and low gain inputs feed a 4558 op-amp stage with a Pre gain control and a Bright switch, followed by Low and High tone controls and a seven-band op-amp graphic equaliser, then a Post gain. An effects send and return and a preamp out/power amp in patch sit ahead of a discrete transistor power amp on +/-45 V rails, with DDT compression to keep it from clipping.

Tags: american, solid-state, bass.

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.