BuyDig via eBay offers the Klipsch Synergy Series 300-watt 12" Subwoofer, model no. SUB-12HG, for $199.99. Apply coupon code "C20SPRING" and check out with PayPal to drop the price to $160. With free shipping, that's $9 under our mention from last May and the lowest total price we've seen. (It's the best deal today by $139.) It features a 12" down-firing driver, 24Hz to 120Hz frequency response, 300 watts RMS power, and adjustable crossover. Deal ends March 27.
Note: The above coupon can only be used once per account.