Easy installation exactly as described “easiest plug-in upgrade for any audio project”. As this was newly installed and have not burned over 150 hours or so music though immediately I can tell these sound DOUBLE the sound quality over the OEM op-amps that came with the Asus Essence STX II 7.1 soundcard. I Will be looking forward to using Burson Audio’s audio products in my next audio project. Keep up the good work Burson Audio! Really appreciate your guy’s passion and love for these products.