This is no help so I apologise. But I have the 8vs 2 and was looking at demoing the EBs sometime as I need a speaker upgrade. I use the Beresford as the source.
Are you looking at getting the amp or do you already have it?
I picked mine up for 450 new, this is a good time to buy if you can get one.
I will demo these in the future along with other speakers up to 700ish.
Haven't bought it yet but have been tempted by the good prices. Had a demo a few years back and was very impressed but cannot remember what speakers were used...