KEF had a small booth, but a lot to show. Its updated XQ speaker line was particularly interesting. Gone are the pod-like supertweeters sitting atop the cabinets. Instead the tweeter in the company's UniQ concentric drivers has been re-engineered to handle all the high frequency chores. The XQ 30 floor stander, shown, will run $3400/pair. Not shown are the matching bookshelf model, the XQ 10, at $1400/pair, and the $1200 XQ 50 center.