DACs with optical input
prices on 21 modelOptical
— input for digital audio signal transmitted via TOSLINK fibre optic cable. This interface is a kind of S/PDIF and is similar in capabilities to the coaxial input (see the relevant paragraph) — in particular, it allows you to transmit multi-channel audio. The key difference and the main advantage of such a connection is complete insensitivity to electromagnetic interference. On the other hand, fibre optic cable is quite fragile and susceptible to damage, it must be protected from strong pressure and bending.