SDA® Digital Surround Sound
A patented* technological breakthrough thanks to over 30 years of experience in research and sound production.
A tremendous evolution on the original SDA Surround Technology, Digital SDA Surround brings surround sound- without the surround speakers into the next century. Featured only in the exclusive SurroundBar 360º DVD Theater, Polk Audio's legendary SDA speaker systems revolutionized speaker technology in the mid 1980's and 1990's and are still prized today by audio enthusiast for their huge, totally enveloping sound stage far beyond the capability of conventional speakers. Original SDA is analog while SDA Surround Digital uses the tremendous processing capability of digital microchips to process the audio- a far more powerful tool then the passive components of original SDA Technology.
Polk Audio's psychoacoustic research and technology has produced a system capable of delivering a 360 degree surround sound experience that stands above the rest. Unlike competing products that attempt to eliminate the need for rear channel speakers, the SurroundBar 360º DVD Theater is the only multi-channel single-speaker surround system that works in any room with easy setup, while eliminating the need for a subwoofer.
The enveloping sound from Digital SDA Surround is so realistic in some cases is better than using 5 or more speakers!
* US Patent # 7231053
