I am off grid except for a cell signal to a hotbox for my laptop. My rig brings me enough fidelity for serious listening even set up on a moutaintop or desert. I have a pair of first generation JBL Partybox 100s (no app needed). Pertinent Point is Windows 10 let me use the DAC in the Partybox as my output device. I had already deleted the containing folder for realtek so in my understanding it is bitperfect bluetoothed to the external DAC in the Partybox. Source is All, pun intended and mine is clean, whether it is from a browser or Audirvana.