View Larger Image PA03 Gainclone power amp (by Pavel Dudek) with Burson V5 upgrade I replaced two Burr Brown OPA134PAs. I like the sound of the V5 OPA a lot. IMHO the stage got wider and instrument separation improved. By Sales Burson|2016-07-18T16:03:34+10:00July 18th, 2016|V5 SS Opamp|Comments Off on PA03 Gainclone power amp (by Pavel Dudek) with Burson V5 upgrade Share This Story, Choose Your Platform! FacebookTwitterRedditLinkedInTumblrPinterestVkEmail