Main rig:

NUC7i5BNH (Akasa Plato X7 case) → (HQPlayer Desktop, sometimes) → RPi4 → Topping HS02 USB isolator → RME ADI-2 Pro FS R Black Edition → Hegel H360 → Amphion Argon 7LS (or Sennheiser HD650)

Room correction filters by HAF, all content upsampled (DSD Direct, DSD256) with smooth, linear phase filter via Roon or alternative HQP filters (poly-sinc-gauss-xla / ASDM7ECV3).

Power via Puritan Audio PSM136 (largely to address DC offset).

Balanced interconnects using Canare L4E6S star quad cable and Neutrik connectors from Mark Grant cables. Speaker cable is Canare 4S11 star quad cable from BJC.

Other systems:

RPi4 → Topping E70v → JDS Labs Element II → DCA Aeon 2 Closed

Wiim Pro Plus → RME ADI 2 DAC FS → Genelec 8030c (+ rooADI and rooDial)

Chromecast Audio → Ruark MR1 mk2

Bluesound Pulse Flex

AudioPro A10 (Airplay)

Monitor Audio Airstream S200 (Airplay)

2 x Google Nest Audio (Chromecast)

Sony WH-1000XM3 and WH-1000XM4 headphones with various Android devices and Roon or Qobuz