Hey Now,
I am using Roon w/HQPlayer to upsample to DSD256 for all my PCM files. I tried JRMC and A+. Roon allows me to use all my ALAC files through HQPlayer, about 90% of my 20,000 files are ALAC. I am using an Intel NUC as a music server with NAA (network audio adapter), my main computer with Roon and HQPlayer is a 5K 27" iMac with an i5 Quad Core and handles HQPlayer DSD256 upsampling with no problem.
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Finest kind,
Chris