Gentleman,
I have heard this debate before. Here is my 40 year experience with high end audio. It doesnt matter !!!! A well setup system with a box or a electrostatic, dipole design will sound great. I have heard both sound just phenomenal when setup properly with that synergy which is hard to get sometimes. Do your homework, and enjoy. I currently have Quad S2 a class B, and a brand-new pair of Marzipans LRS+ What my wife calls them, and I am running tube gear. I could not be happier.