ClubNeon, I was asking about the direct digital input because there is still an audiophile market for good external DAC. So if the DSP can already convert digital signal to analog better than most low end CD player, streamer or whatever you are using as a music source, why not trying to get a share of this market? But I understand it could require some modifications in the circuitry.

P.S. HDMI and HDCP are for video contents. I was not talking about home theater but only stereo listening. Most hi-end audiophile product don't even have HDMI. Some mid end like Rotel or Arcam have it.