Ending today, Newegg offers the JBL 150-watt 10" Powered Subwoofer, model no. SP150AM, for $99.99. This $20 mail-in rebate drops it to $79.99. With free shipping, that's tied with our mention from two weeks ago as the lowest total price we've seen. (It's a current price low by $15, although most retailers charge at least $118.) It features a frequency response of 35Hz to 180Hz.