AK players were mainly the idea for the optical. At the time the idea of coax was floated about but was nixed, also many if the Daps around now 'Fiio, ibasso etc didnt exist at that time. I think the up and coming Hifi-m8 mini has more inputs. The Hifi-m8 was to be a jack of all trades, many cooks cooking the broth.
1/5/15 at 8:59pm