Once you are considering speakers at this level a showroom demo isn't very reliable. Guessing how a ^$10,000 speaker will sound in your room with your electronics is a crap shoot. While there are some basic issues to consider when matching components, after that there are endless unpredictable variable.
I will never buy an expensive speaker again until I hear it with my stuff.
I will never buy an expensive speaker again until I hear it with my stuff.