I recently bought a Blue Yeti Pro, because of its reasonable audio quality bucked with the ability to use USB, XLR and a direct headphone jack. Overall, I am very satisfied with my purchase but I must ask.... Will a sound card benefit a USB Microphone? I tried to google and search around, but I found no direct answers, any help would be appreciated.
Also, what sound card would you recommend for vocals if it were to be the case?
One thing the USB port on the sound card might have that standard USB ports might not have (as much) of is filtering on the USB power feed. But if the USB devices is designed properly, which I would expect if you are looking at professional-grade stuff (XLR), this should make little to no difference.