The Bose® surround sound decoder card for card-frame ControlSpace® engineered sound processors provides surround sound decoding for Dolby® 5.1, DTS® 5.1/6.1 and stereo PCM formats over coaxial and optical, eliminating the need for an external decoder. Bose ControlSpace Designer™ software features a surround card ­configuration panel with testing and tuning ­options for implementing surround sound sources in system installations.