Max ... Understood about the soundstaging. I do have a SMALL amount of experience with this ... but do appreciate the help ...
Today was a lot of fun - I even tried to get people to pick one pair over the other, and even that was tough. Both speakers do different things well.
Level matching, instant switching, and turning the lights off sure does make a difference.
By the way, I even have stands which places the centers of the speakers very close to even. The SVS are considerable taller, but are on lower stands.
We don't need a different thread - anyone who cares to guess which is which based on the info posted, go for it.