Kustom Defender 112 preset

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

The Kustom Defender 112 is a 1x12 all-tube combo from Kustom's budget Defender series of the late 2000s. One input feeds a 12AX7 stage with Bright switch and Volume, then gain stages into a treble, bass and mids stack and a switchable Master. A footswitchable Boost adds gain, an op-amp spring reverb has its own level, and a long-tail phase inverter with Presence drives two EL34s, with a 6L6 bias switch.

• Channels: 1
• Preamp tubes: 3× 12AX7
• Power tubes: 2× EL34

Tags: modern, american.

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.