I'm getting ready to order the SoundBlaster Z but before doing so, I wanted to verify something. I read that in order to take advantage of the on-board amp on the SoundBlaster Z, you have to plug the headphones directly into the sound card headphone jack? The Sennheiser 363D comes with a 7:1 USB Sound card, which would result in a USB connection end for the headphones? If so, then you could not plug it directly into the sound card in order to take advantage of the amp? Or am I not seeing this correctly? Thank you for your help.