Thanks Christoph. Yes it is indeed a balanced Atlantic Plus, well spotted! I originally had the KR 5U4G rectifier tube but swapped it out for the Emission Labs 274b, which is the one in the picture. The amp is a Classe CAP-2100, and I am happy with the Vivid B1 speakers. What’s your Lampi? Any tips on how to improve it further? I read that it is sensitive to the power cord, but have just used my Nordost Wyrewizard so far.