July 2019:
XXHighEnd PC (i7 3930K) Hyperthreading On (12 cores) clocked to 3.6GHz (100%), 16GB, Windows 7 Ultimate64 SP1 on 2.5” SATA2 SSD disk for OS and XX, music on 3.5” SATA3 7200 RPM.  Motherboard BIOS settings: BCLK = 100 MHz / Intel Speed Step = OFF / Max Clock Ratio = 36 / Allow OS to change ratio = *OFF*. 
XXHighEnd 2.10 Adaptive / Q1/3/4/5 = 2/0/0/1 / Q1x = 1 / Dev.Buffer = 4096 / ClockRes = 1ms / Straight Contiguous / SFS = 30 (max 150) / Playerprio = Low (or below normal) / ThreadPrio = High / Core3-5 / No Playback Drive / No RAMDISK / UnAttended / most services Off, WASAPI on  / Minimize OS / XTweaks set to v2.01 Defaults / 16x 768K Custom Filters (High) or ArcPredict
DAC: Holo Audio Spring 2 KTE NOS DAC, and no preamp (also ISO REGEN powered by battery)