Hello everyone i recently bought a pair of hd 598SE. Im using an intel DH67BL motherboard and logitech z506 5.1 speakers. Im currently connecting my headphones to the speakers which go to the motherboard. I also have an internal sound card creative sound blaster Z which is supposed to be pretty good but for some weird reason i get crappy sound when i connect the headphones directly to it no matter what effects i try. So what I am asking is what can I do to truly take advantage of my headphones when listening to lossles files cuz they are characterised as a high end pair. Should I get an amlifier a DAC or what?Would upgrading to a new pc with a new motherboard make sound coming from the sound card any better? Suggestions needed.