Just made a test on my new Mac min pro. Installed a copy from Roon server and restore from backup. Then installed HQPlayer on the same mac. On i did configure roon DSP max sample rate conversion and the Hqplayer was configured with AMSDM7EC and poly-sinc-gauss-hires-ip. So quit a power was needed.
In the activity monitor the cpu was just 30% occupied.
Roon with this load was even much faster then the nucleus+.
Have somebody any experiance with roon and HQPlayer on a Mac mini pro?