Sound Card helpful?

[Haserath]

I was just wondering whether a sound card would affect headphones that connected via USB. If not, then are USB headphones able to be as good as headphones that plug into a sound card?

 

[hunter315]

The sound card wont have any effect on the data being sent through the USB ports, it can only output through the ports on the back of its card.

You cannot generalize headphones based off of if they use USB of an 1/8" jack, it really depends on the headphones themselves as speakers vary in quality, and response range.