I missed your reply until now...great that you are having fun rolling tubes. How does the B&W center channel integrate with the OB1s? Isn't it outclassed?
Nice system nut no pics? I am a fan of the dome mid range three way designs such as in the Energy Veritas or ATC line. I have not compared Energy or ATC to the OB1...how does it sound? Any change with going to tubes?