RH-688X series audio decoding system can decode DTS Dolby AC-3, LPCM and other digital audio format source codes. If the optical fiber or coaxial output of the player is connected, the optical fiber or coaxial input of the decoder is connected through an optical fiber audio line or a 75-ohm RCA coaxial audio line, and the decoder is switched to the optical fiber or coaxial input.
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