This is NOT your daddy’s topography:

8-Core Mac mini M1 16GB / 2TB
This is the Roon Core

Quad-core 1.7Ghz router
Dedicated 5GHz band,1733Mbps; explicit beamforming

8-core MacBook Air M2 24GB / 2TB
DSD 256 headphone DAC with integrated amplifier
Closed reference headphones (wired… duh)