Groupon offers the factory-refurbished Samsung Sound Bar and Wireless Subwoofer, model no. HW-HM45C, for $139.99 with free shipping. That's the lowest total price we could find for a refurb by $49. This 2.1 channel system features Bluetooth, 290 watts, an active subwoofer, HDMI, and USB. A 90-day Samsung warranty applies. Deal ends January 26.