View Larger Image Asus, Essence STX II with Burson V6 Vivid Opamp upgrade Great sound, definitely improved over stock opamps! Related By Sales Burson|2018-04-19T16:24:53+10:00April 19th, 2018|V6 SS Opamp|Comments Off on Asus, Essence STX II with Burson V6 Vivid Opamp upgrade Share This Story, Choose Your Platform! FacebookTwitterRedditLinkedInTumblrPinterestVkEmail