I would get Kevin Deal on the phone....he will be able to help you. Would you please post your experience and especially the PrimaLuna Dac once you've listened for a few weeks.
I am working with the people from PrimaLuna and Upscale Audio they are being very helpful. I did discover a bad tube, a pin had broken off, probably during shipping. I have many spares and was able to replace it. I do have my laptop connected to wifi with coaxial cable. I have a long run from laptop to DAC with regular data cable. I have on or a USB cable from Audioquest and they're usb jitterbug filter. I also bought a PrimaLuna EVO 100 TUBE PREAMPLIFIER and can tell you what wonderful improvement that has made.