This page is dedicated for Xonar hardware mods discussions. If you wish to make a tutorial, I will publish it here with credits to the owner. You should submit your article at this e-mail address. Also I will post any links that might be useful.   Articles and guides: 1) Xonar Essence STX Op Amp Upgrade by Adrian Tache 2) Modding Xonar cards by Con   Useful Links:  –