Harman Kardon offers its factory-refurbished Harman Kardon HKTS 16 5.1-Channel Home Theater Speaker System in Black for $150 with free shipping. That's $50 below our mention of a new unit from four weeks ago, $449 off list, and the lowest total price we've seen for this system. It features four 2-way, voice-matched satellite speakers with 3/4" dome tweeters, one center-channel speaker, one 200-watt 8" powered subwoofer, and speaker cables. It's covered by a 1-year Harman Kardon warranty. Deal ends February 1.