Newegg offers the Klipsch Synergy Series 10" 200-watt Subwoofer, model no. SUB-10, for $179.99. This $30 mail-in rebate cuts it to $149.99. With free shipping, that's tied with our mention from three weeks ago and the lowest total price we could find by $74. Features include 200 watts continuous power (420 watts peak), a 10" down-firing driver, and frequency response of 28Hz to 120Hz. Deal ends June 20.