Carlsbro Cobra 90 Keyboard preset

Verified · 82/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Carlsbro Cobra 90 Keyboard is a 90-watt solid-state keyboard amplifier with three input channels, each with its own gain, bass and treble plus sends to the built-in reverb and effects loop. The channels share the same op-amp circuit and differ only in input impedance; channel 1 has a high-impedance FET input. It is a clean, full-range amp for keyboards rather than a guitar amp.

• Made in: UK
• Wattage: 90W
• Channels: 1

Tags: british, solid-state, clean, reverb.

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.