View Larger Image FX Audio Tube 03 with Burson V5i Dual Opamp True to its claim. Details that I haven’t heard before are now revealed. By Sales Burson|2020-07-28T17:30:18+10:00July 28th, 2020|V5i SS Opamp|Comments Off on FX Audio Tube 03 with Burson V5i Dual Opamp Share This Story, Choose Your Platform! FacebookTwitterRedditLinkedInTumblrPinterestVkEmail