Newegg offers the Klipsch Synergy Series 10" 200-watt Subwoofer, model no. SUB-10, for $149.99 with free shipping. That's tied with our June mention and the lowest total price we could find by $34. Features include 200 watts continuous power (420 watts peak), a 10" down-firing driver, and frequency response of 28Hz to 120Hz. Deal ends December 14.