I own a maximus vi extreme motherboard and I am looking into buying a g4me zero due to their high sound quality and mic built in. I read a few reviews that said your really need a headphone amp and/or sound card to get the most out of these. Is the onboard sound going to be enough for these? Should I get a sound card to optimize these. Not really a question of money. Kinda new to pc audio so I appreciate your help.