So, despite the somewhat low sensitivity ,these speakers are an easy load. The bass is handled by a separate class D amp thats in the speaker so you're really only driving the midbass up. I've not tried it but I suspect you'll be fine. You can call Vandersteen and ask. They'll probably put Richard on the phone.
Vandersteen Aficianados please step inside (Quatro)
I've got my eye on a pair of Quatros. Would a 60 wpc tube amp comfortably drive these? Or would I be doomed to something in the SS category? Thoughts appreciated.
Room is 26 x 16 x 8