Thanks for the kind words, Louis. My 2A3 is only a Sun clone, but it sounds quite nice and mates very well with the Super 3XRS. I'm astonished that this simple set-up is able to achieve such a high level of musical magic.
I'm now looking for a used pair of Super Alnico Monitors or something similar with great imaging (for a 300B based system). Thanks for putting together such SET friendly, nicely designed & well-engineered speakers.