KEF have developed innovative new technologies to deliver high-quality wireless audio, while at the same time avoiding signal interference.

A narrow signal band is used that is sufficient enough for high-quality audio transmission yet perfect for finding a path through the congested environment of a home filled with potentially conflicting devices. This narrow band is a feature of HFADPCM (High Fidelity Adaptive Differential Pulse Code Modulation), and along with advanced error correction technology ensures an exceptionally robust delivery of CD-quality audio between the transmitter and receivers.



The system detects other transmitters in the 2.4GHz frequency band - such as cordless phones, Wi-Fi routers and microwave ovens - then 'hops' out of the way of potentially conflicting signals. With this technology know as AFHSS (Advanced Frequency Hopping Spread Spectrum), a processor constantly monitors several channels at a time and continually switches to the strongest available to ensure a pure signal. It's all done in milliseconds so you don't notice it's happening: so nothing gets in the way of your enjoyment.