Which 2018 Mac mini?

[wklie (Peter Lie)]

In case you plan to have a direct USB connection to DAC, you need to stay away from new models with T2 chip:

Dropouts - New Mac Mini

Here’s a link to a recent fairly authoritative article attributing the problem to the T2 chip: http://cdm.link/2019/02/apple-2018-glitch/ (Glad I returned mine.)