- DTS / AC3 audio decoder is widely used to decode the source audio output from PC, notebook, for PS3, for XBOX360, HD player, HD set-top box, DM500 / DM800, Blu ray DVD, HD DTS / Dolby sound field and other audio and video players, so that many families, schools, squares, concert halls, electric cinemas and other places can enjoy the shock effect brought by DTS or Dolby sound field; 2. DTS / AC-3 source digital audio signal is decoded into analog 5.1 channel audio signal; 3. Analog stereo (R / L) signal is converted into analog 5.1 channel audio signal through audio processing chip; 4. Two SPDIF optical inputs, one coaxial input, one stereo input, more complete multi-channel digital audio output, making the switch more convenient; 5. RCA output interface, easy docking power amplifier, multi-channel one button switch, convenient and fast, stereo and 5.1 channel switch at the same time.