View Larger Image Asus Xonar Essence STU DAC / HP Amp with Burson V5i upgrade Very easy to install. Improvement in soundstage, more focus. Enjoy listen to the music over the headphone. By Sales Burson|2017-07-04T16:30:40+10:00July 4th, 2017|V5i SS Opamp|Comments Off on Asus Xonar Essence STU DAC / HP Amp with Burson V5i upgrade Share This Story, Choose Your Platform! FacebookTwitterRedditLinkedInTumblrPinterestVkEmail