This is the place for you :
http://forum.beoworld.org/forums/thread/174401.aspx
I would go for BL8000,but if you choose 4000 you will not regret it. They are beautiful speakers !
when your Black Label begin to taste like juice just take shot or two of Absinthe and
after that quench with some vodka, if you still feel juice like take beer
with grappa !