Already have an Asus Essence STX, I wanted to acquire a high quality interface with a microphone input and a headphone output. This is done with this interface, the finish is not exceptional, especially the gold line, for against the sound is really great (very good spatial and dynamic, a very neutral and detailed sound image). I tested it for now only with the Sennheiser PC 360 headset and the association is very good. I am currently using in the course of my work (Portable Dell) to listen to throughout the day to good music with my Qobuz subscription (Driver WASAPI shared) and to call and participate in conf-call with Microsoft Lync