KEF Q900 loudspeaker
KEF and I go way back. As a very young man in the 1960s, I was obsessed with building speakers, and that was just about the time that KEF founder Raymond Cooke was revolutionizing driver design by using new synthetic materials for cones and surrounds, and experimenting with such innovations as transmission-lineloaded midrange drivers. I found it all very heady and, by direct import from the UK, obtained versions of the oval, flat-diaphragm B139 woofer, the Bextrene-coned B110 and B200 woofers, and the T-15 and T-22 dome tweeters. Fifty years ago, this was all cutting-edge speaker technology.
The Snell Type C/IV's design has been highly influenced by both the testing methods and philosophy of Canada's National Research Council in Ottawa. Other well-known loudspeakers to have benefited from the NRC's testing facilities include the