Cekotech digital optical audio cable can be connected to wide range of equipment and devices to provide increased sound clarity. Thanks to the heat-free optical cores, this SPDIF subwoofer cable can transit sound without distortion, electromagnetic or radio frequency interference, and therefore can perfectly support for uncompressed PCM audio and 5.1 to 7.1 surround sound systems including Dolby Digital Plus, DTS-HD High Resolution and LPCM