Hi Ron....Sorry...I'm not exactly sure what you mean..... pull the USB cable out(?).......16/44.1 PCM(?)...... I'm still learning on how to use the USB.
I'm using a windows 10 laptop. Downloaded the Mc software for the USB. Playing random music from my iTunes and Windows Media Player. Mp3, WAV, M4a, Flac, all at different bit rates. Also playing various internet radio from iTunes, Tune-in, etc......everything displays 32/192 on USB input. The C50 USB input displays 32/192 even when no music is playing and all the programs are closed. Fiddling around with the Mc USB Audio Control Panel and seeing how it works... changing the settings makes the music play in slow motion. On another side note....When using my 2 CD players digital outputs to the C50 Coaxial or optical, the "44.1k" display flickers. This is a separate issue I'm concerned about. I'm an old man...but a newbee to McIntosh digital. Hope you can help. Thank you!