question about EAX

i have an x-fi xtremegamer fatality edition...i have EAX at 5.6 ...but i wanna play with headphones that are logitech premuim 350(the connect through USB)...since they arent connecting through the sound card..will i still get EAX?

No. Because you are using the headphones usb sound card/software. I know the Xfi xtremegamer fatality edition has a front plate that you put in one of your optical 5.25 optical bays. This makes it easy plug any kind of audio headphones into your pc and still use the x-fi sound card.

You dont need to be using a usb headphones. Not when you have a great sound card.