Computer, software, USB cable or ?
Had some friends over for the holiday weekend and was playing a bunch of different stuff. Started with some cable radio @ 48K via TOSLINK into my C50 DAC. Sounded about as you would expect; good but not great. Standard streaming, IOW. Moved on to digital from my laptop via USB. It's a MacBook Pro from 2012 with OS X 10.11.6 (El Capitan), 2.5 GHz i5 processor and 8 GB 1600 MHz DDR3 RAM. I have the audio MIDI interface set to upscale everything to 32 bit 192 KHz so I can use iTunes as the file serving app for both standard and hi-rez files. The USB cable is a decent quality computer cable, not an "audiophile" cable. The sound was again good, but not great. All files are ripped in WAV at source resolution (e.g. 16/44.1, 24/96 etc.). Bluntly, it just doesn't compare to my MVP 881 BR disc player.
I'm not expecting my computer source to rock my world, but I am wondering if there might be some way to get better performance. Thanks in advance and I'll look forward to your input!