Function: 1. The DTS/AC-3 audio decoder can be applied to the source audio output of various audio and video players, providing shocking Dolby sound effects. 2. Analog stereo, the signal is converted to an analog audio signal of 5.1-channel by the sound processing system. 3. Multi-channel one-touch switch, convenient and fast, allows simultaneous switching between stereo and 5.1 channels. 4. It can be used to output digital signals such as HD video players, DVDs and DTS/Dolby digital audio source decoding. 5. Interface functions are complete, including optical, coaxial, stereo input interfaces and output ports CEN, FR, FR, SL, SR, SW. 6. Dual-channel SPDIF optical input, 1 coaxial input, 1 stereo input and a fuller multi-channel digital audio output for easy switching. 7. Used for audio and video players such as support for PC / PS3 / XBOX360 / HD players, HD decoders, DM500 / DM800, for Blu-ray DVD and HD-DTS / Dolby sound fields. Specification: Item Type: Sound Decoder Material: ABS Single signal to noise ratio: 120dB Response frequency: 20 Hz ~ 20 kHz Operating temperature: -20 ℃ - 40 ℃ How to use: 1. SW: output interface RCA subwoofer channel 2. CE: output interface RCA of the intermediate channel 3. SR: output interface of right surround sound channel RCA 4. SL: output interface of left spatial channel RCA 5. FR: Output interface RCA right front channel 6. FL: output interface RCA of the left front channel List of packages: 1 x Audio Decoder 1 USB cable 1 x Fiber Optic Cable 1 x Manual