Would a good linier PSU for my mac mini clean up the usb power?

[rsbrsvp]

It is well known that the usb hubs of all computers are quite noisy.   If I purchased an external linier PSU (which claims to be quieter than the lowest noise lithium batteries) for my mac mini would the USB power be cleaned up substantially so that I could use a USB powered dac and not have the need to have a dac with its own PSU?

 

[A_Man_Eating_Duck]

What DAC are you interested in getting?

I would get the DAC first and then IF you have a USB noise issue then look for a solution.

 

[Mediahound]

The Schiit Wyrd is quite nice for this application.