You may want to look into some used Klipsch speakers. They work much better with tubes. I think most of there stuff is around 100db.
There is a local guy with three La Scala's ( mains and center ) and two Heresy's for the rears. He's using dual Klipsch subs to fill in the bottom octave or two. The center La Scala resides directly behind his pull down projection screen, so voices literally sound like they are coming right out of the actors' mouths. Needless to say, it is dynamic as all get out and works like gangbusters. Sean