The newer and smaller of Bang & Olufsen's two powered floorstanding speakers powers its woofer with 500 watts of Class D ICE power (the smart green kind) and saves sweeter-sounding Class AB for the midrange and tweeter. At $9900/pair, you might find it sinfully expensive, but when you see some of B&O's slick moves for integration with swiveling video displays and its brand-new multimedia interface, you just might change your mind.