I have a PCI Creative Sound Blaster X-Fi Platinum sound card sandwiched between two Crossfire cards. This causes one to overheat. I've had the X-Fi for a long time so I think it's time to upgrade. I haven't tried the integrated sound on the motherboard (ASUS P8Z68-V PRO). If I get a PCIE card it will be out of the way.
Can anyone recommend a comparable or better PCIE sound card that works well with headphones for gaming? The last three cards I've owned were SBs but I heard good things about Xonar/HT. I'd love to still have a 5.25" front audio panel with the 1/4 headphone jack for my Sennheiser HD 555s. The bass on these is starting to go so I may need to replace these as well.
EAX doesn't matter anymore, period. It hasn't mattered for almost 5 years now. Its a nice feature to have for legacy titles, but thats about it. Also worth noting is that ASUS cards can emulate EAX 5.0 when GX mode is enabled.