Their really aren't any tube based current pre/pro's, none that I know of that will accommodate HDMI switching and the new codecs of Blu-ray at least.
I have had almost all the upper end AV preamps except the Theta though have heard it many times. For my money the most open and musical are the Meridian 861 and the Krell Evo 707. That said I run the Classe' SSP-800 and an ARC 40th Anniversary in HT bypass for movies and it sounds sick. You won't get the tube sound you crave from a SS AV preamp so keep a hybrid system and the VAC pre if it does you well now.
I have had almost all the upper end AV preamps except the Theta though have heard it many times. For my money the most open and musical are the Meridian 861 and the Krell Evo 707. That said I run the Classe' SSP-800 and an ARC 40th Anniversary in HT bypass for movies and it sounds sick. You won't get the tube sound you crave from a SS AV preamp so keep a hybrid system and the VAC pre if it does you well now.