Asynchronous USB Audio Class 2.0, galvanic isolation, two oscillators, and reclocked simultaneous data output. With U.FL output connectors it would be adequate companion to AYA II 2014 or DS board, and of course the great possibility to connect PC to Model S MkIII. It will support balanced topology as well.
Premium version of Model A uses Audial made, real copper binding posts. Soon they will be available for separate purchase, in two lengths, for use with amplifiers or loudspeakers.
Even though it was discontinued in 2009, the interest in this great DAC never actually disappeared, so it had several after-runs. “DS” was its 2015 release.