The Samsung DA-E750, one of the year's best audio systems, doesn't tout the tech detail du jour – a massive touchscreen – but instead is built with a vintage look and vacuum tubes. It's a noble pairing: The mahogany finish evokes the warmth of the tubes, whose glow is glimpsed through a glass window. And despite the throwback vibe, the Bluetooth system, with its 100-watt speakers and built-in subwoofer, connects with virtually any device. [$700;]