Harman Kardon offers its Harman Kardon HKTS 9 5.1-Channel Home Theater Speaker System in Black for $154.99 with free shipping. That's $5 under our March mention, $445 off list, and tied with our mention from two weeks as the lowest total price we've seen. It features a frequency response of 45Hz to 20kHz, 200-watt powered subwoofer, five wall-mount brackets, and color-coded speaker cables.