Polk Audio via eBay offers the factory-refurbished Polk Audio SurroundBar 5000 Instant Home Theater, model no. 5000 IHT, for $144.99 with free shipping. That's the lowest total price we could find for a refurb by $65. It features a 120-watt wireless subwoofer and Surroundbar with SmartBar programming, Bluetooth, and on-board Dolby Digital processing. A 6-month Polk Audio warranty applies.