Which is better: coax or toslink?
We primarily recommend the coaxial inputs as toslink is known to produce high levels of jitter as a result of converting electrical SP/DIF to an optical signal. This may or may not be audible. However, one major benefit of toslink is complete galvanic isolation from noisy grounds which may be a more critical factor under some circumstances than its actual jitter performance. Coax and toslink performance can also vary from different digital sources (cd, dvd player, computer etc.). For instance, computers and dvd players often host switching power supplies or servo motors that may inject noise into the DAC circuitry via the coaxial cable. An optical toslink connection is not subject to such problems. We recommend experimenting with different connection types and setups and deciding what subjectively sounds better.
