Title says it all. I'm looking into getting some HD 558s that I'll be running on my integrated Realtec ACL898 soundcard. I may be getting a xonar DG in the future. Anyway, will I need to get an amp for these headphones? Thanks in advance for any tips.

Hi everyone, if it isn't obvious I'm kind of new here and I'm looking for gaming headphones. However, unlike most people here, I don't have any sort of amp or dedicated sound card. I've been looking into getting some HD 518s but I was wondering if spending that much would even be worth it if I...