TOSLINK is a standardised optical fibre connexion system. Also known generically as an "optical audio cable" or just "optical cable", its most common use is in consumer audio equipment (via a "digital optical" socket), where it carries a digital audio stream from components such as CD and DVD players, DAT recorders, computers, and modern video game consoles, to an AV receiver that can decode two channels of uncompressed lossless PCM audio or compressed 5.1/7.1 surround sound such as Dolby Digital Plus, DTS-HD High Resolution Audio or S/PDIF (Sony/Philips Digital Interface Format). Digital audio is popular among users with high power speaker systems.
Compared to analogue audio signals through stereo cables, there is no interference for digital audio. This is the reason why most HiFi systems prefer digital input (or coaxial). Toslink inputs are commonly found on modern AV receiver, soundbar, and some high-end desktop speaker, and studio monitor speaker.,TOSLINK is a standardised optical fibre connexion system.
Also known generically as an "optical