it can b important but it also relates 2 the size of yer studio (standing waves and stuff! ;) ).. so if u have a small studio something that runs around 48-45 khz is very good!

Sure the more the merryer but u might get "extra"humpff" from yer space and end up with very light bass mixes!

I say it's more and more down 2 a good location 4 the speakers and the shape/ materials in the room...!

Z