You might try communicating directly with Kevin Scott, the founder of Living Voice. He is a quite friendly, and I suspect he would answer your questions.
Greetings from over the pond.I've heard the OBX and use Auditoriums myself. I would say there is a House sound but very clear differences. They produce a good sounstage a good tone and dynamics. The weakness is the base, or upper base in the Auditoriums. It is a little loose and colours the rest of the higher frequencies. I still love mine, though I'm saving my pennies(cents) for the OBX. As you may know, the OBX is the most expensive, but also the biggest seller of the range.
Hope that helps