We've seen single 'surround bar' speaker systems before from the likes of Yamaha, Denon and Boston Acoustics, but now Polk Audio has a new twist on the concept.

Its 5.1 SurroundBar multichannel speaker comes with a separate, compact DVD player with FM/AM tuner and a front USB port for connecting an MP3 player, making it a complete home cinema in a box system.

The speaker uses Polk's proprietary SDA technology and PowerPort bass venting system to provide more realistic surround imaging from a single unit.

The device will be unveiled at the Consumer Electronics Show in Las Vegas this weekend, along with Polk's new I-Sonic Entertainment System 2 iPod dock.

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