Newegg Flash offers the Klipsch Synergy 12" 105-watt Powered Subwoofer, model no. KSW-12, for $149.99 with free shipping. That's the lowest total price we could find by $29, although we saw it for $18 less three weeks ago. It features a 12" down-firing driver, variable crossover, two line level/LFE inputs, switchable phase, and a continuous power rating of 105 watts. Deal ends January 16.