My craving for tubes was too great to ignore. These are Rogue Audio Apollo tube monoblocks. With the assistance of beemers417 and Nick (at Rogue Audio), we realized that no AI-1 Interface was needed, nor the need to connect the negatives in order to connect my 1.2TLs. I've been listening to them most of the day. I have only had to bias the tubes twice since unpacking them from their box.
I am currently using a Carver Lightstar preamp, as I wait for my tube preamp to arrive.
I now know why people enjoy the sound of tubes.
At 250 watts per block, they make the Polks come alive. Very nice detailed music at a low volume. I thought Diana Krall was actually playing live in my home.