Quad Cortex is the most powerful floorboard amp modeler on the planet. With a total of 6 cores, this ludicrous amount of processing capacity provides limitless sound design possibilities. 
In 2020, Neural DSP claimed its flagship Quad Cortex was the most powerful floor modeler on the market, with 2 GHz in digital signal processing power via four SHARC+ processors. The Cortex shipped with 50 available guitar and bass amp models, 70 effects, and a thousand impulse responses. It also had features that competitors such as the Fractal Axe-FX and the Line 6 Helix floor modelers did not, including a touch screen interface, Wifi connectivity, and footswitches that combine stomp functionality with rotary actuators. The Cortex also has companion software that allows users to "capture," or digitally recreate, their own analog guitar gear and share it with other users via the Cortex Cloud. By 2026, the Quad Cortex's library had increased to over 90 amps and 100 effects, with 1,000 impulse responses and 2,000 captures.
With its massive 7” touchscreen, Quad Cortex is unbelievably easy to use. Effortlessly create even the most complex signal paths.

Dimensions
29 x 19.5 x 6.9cm / 11.4" x 7.7" x 2.7"
Weight
1.95kg / 4.2lbs
Includes: Original box and power supply

This used Quad Cortex pedal is in excellent condition, ready to be played!! All of the multi-purpose footswitches work and rotate properly, and I love the giant sounds and tones you can get out of this!

Every instrument we sell has been professionally checked over and setup by our in-house technician to ensure optimal playability. We pack each order with care and ship promptly.

Mill River Music is a full-service shop in Western Massachusetts, proudly offering new, used, and vintage gear, plus repairs, and friendly advice. Reach out at (413) 505-0129 or with any questions!

International buyers are welcome — please message us for an accurate shipping quote before purchase.