oo nga, pero tahimik.
keith, if you're reading this. you should hear the 2A3 using a passive linestage with DACT (ala FT Audio). Malupet ang dynamics and resolution! Very neutral sounding. I want to challenge a SET 6C33 amp if there is any
yung 45 ko is being upgraded with plate chokes on the 417A/5842 driver stage, let's see how it improves.
with that kind of sensitivity, i strongly suggest a passive with DACT or other great sounding stepped attenuator to fully harness the output tube characteristic and achieve least coloration (absence of preamp) but interconnects will play a great role. you may want to check with hansen's audio note ICs.