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 $1.99 for shipping, that's the lowest total price we could find by $36, although it was $2 less in March. It features a frequency response of 35Hz to 180Hz. Deal ends May 31.