Model-One Digital Inputs Hi-ResUpdated 3 years ago
The Optical input will accept up to 24/96 and the Coaxial will accept up to 24/192. So either of those are the primary digital inputs for high resolution. The USB is limited to 16/48 and is there primarily for ripping to a computer. A simple converter like the Douk Audio U2 can be used between a computer's USB to the Model One Coaxial.
https://www.amazon.com/Douk-Audio-Converter-Interface-PCM192Khz/dp/B085XPRSGM