No idea about KULO but Realtek onboard codec is about the worst out there....lol....
=.=|| people already say budget 100, can dun blindly recommend/advertise ?i recommend you get ASUS Essence STX or ROG Xonar Phoebus
Xonar Essence STX Review (Subjective Listening) - www.hardwarezone.com.sg
Get a Creative Labs card or a Xonar card. But if you only need headphones, get a Logitech gaming series with USB.
which slot sound card uses?
Asus Xonar DG/DGX or DX/DSX? Both below $100. My friend bought the DGX but he wasn't able to differentiate the difference with onboard. Not quite sure if his speakers are not good enough or he is not an audiophile.