I am moving my YAMAHA RN-301amp to my computer, and running an optical cable from the computer to the amp. I am not going with an external DAC, since the bookshelf speakers I will pair with it will be under $400.00 Canadian. (I got some good advice on this forum, letting me know that the entry level DAC won't be much of a difference with entry level speakers). My main 2 channel room will get an upgrade. (YAMAHA A-S801 amplifier), with either Wharfedale Diamond 250's, or Focal Chorus 726's. Does anyone suggest an external DAC? Or, is the YAMAHA DAC adequate? I mainly listen to streaming from my ROKU, (DEEZER, SIRIUS/XM), with the T.V. as the interface. Again, suggestions, advice, much appreciated.