KEF Technology

What if your sound system could listen to itself and adjust in real time to deliver perfectly accurate audio? KEF’s patent-pending Velocity Control Technology (VECO) does just that. A built-in sensor within the bass driver monitors coil motion in real-time, employing a negative feedback loop to dramatically minimise distortion and compression. This groundbreaking innovation delivers ultra-clean, deep bass and a listening experience free from unwanted artefacts.

VECO integrates an embedded electromagnetic sensor within the driver, featuring a sophisticated wire pattern that generates an electrical signal based on the speed of the voice coil. Surrounded by a magnetic circuit of tiny magnets and steel rings, the sensor detects motion with incredible accuracy, inducing a current in response.

This real-time data is sent back into the amplifier through a negative feedback loop, correcting any misalignment between the audio signal and the driver’s motion. By applying the necessary damping to maintain system stability, VECO ensures that the signal reaching the driver’s voice coil is a seamless integration of the intended musical content and real-time corrections.