Hello dear forum members, As a great music and hi-fi lover, but a with a small knowledge of IT, I would like to ask the following. My Music set-up: Technics Se/9200 - SU9200 preampli/amplifier Marantz NA 7004 network player (with DA/convertor) [URL]http://us.marantz.com/us/Products/Pages/ProductDetails.aspx?CatId=HiFiComponents&ProductId=NA7004[/URL] PC with 1,5 Tb memory ( sound card ??) A have on my Pc a large music collection ( MP3/FLAC) , I would like to play this music in high quality to my music system , optionally with a NAS set-up. Could someone explain to my how I can make this connection, from what I understood so far, I could make use of the DAC in from the Marantz I suppose this is something as Qobuz or Spotify, can I e.g make this connection via the USB from the Marantz. Thanks everybody for the help Patrick