Here's why I ask. I lived with an EAR 859 amp for a couple few years. Thats an SE using a 509 pentode wired in triode. Very good Yoshino Transformers driven by 6922 tubes. The sound was very good but dry; very dry. Thats why I sold it. Yet lots of folks love that amp and that combination. 300b's sound exactly to me like you say; very 3d presentation; we call it pschycadelic. 2A3's are too soft. Thats why I am trying the 6Ah4. I figure something has to have that lively/detailed/good bass; vintage sound. Where instruments don't seem to be larger than life. Thats what the 211's seem to do. except I'm too chicken to try them. So is that where you are going with your driver stage?