Harman Kardon offers its Harman Kardon HKTS 16 5.1-Channel Surround-Sound Speaker System for $189.99 with free shipping. That's the lowest price we could find by $89, although we saw it for $10 less in January. It features a 45Hz to 20kHz frequency response, four 2-way, voice-matched satellite speakers, center-channel speaker, 200-watt RMS 8" powered subwoofer, and speaker cables. Deal ends June 25.