If connecting the DAC to the PC via USB then the DAC is also powered by USD.
If connecting the DAC to a source via COAX/OPTICAL then the DAC still needs to be powered by USB and for this they have a DC-to-USB device.
My wife has a vinyl collection and I am thinking about assembling a "simple" but nice setup for her.
I have come across USB turntables from say Pro-Ject and Audio Technica. I am thinking about connecting one to say a wireless set of speakers like the Dynaudio Xeo3/4 or the Dali Kubik Xtra. (I actually don't know if either speaker can directly connect to such speakers???)
I would probably lean towards the Dali speakers since they are cheaper and can be...