You don't say what role/s you want the new line to fill. Integra already brings "distribution lite" to your stable. To me B&K seems like quite a different animal than the other two. Personally if I had to choose between Rotel and Adcom I'd go with Adcom because they've got (IMHO) better name recognition that "touches" the high end. B&K on the other hand does audio distribution better and is no slouch in the quality arena. (Still only MHO.)
You are transparent! I see many things; I see plans within plans. The Spice must flow!