I have zero to add as I have not used the W series, but as a general point I am surprised by the quality of the QS8. Relevance - building a good sounding speaker is hard, and doing it in a small package is even harder. So I would trust the W series to an extent based on the extreme quality and abilities of the Q.
Otherwise, if you prefer small speakers perhaps you should consider in-walls. There are fantastic in-walls now that take up no room. If you have access to the walls at this point, one of the biggest negatives is not there for you. Two cents exhausted.


Panny 3000 PJ, 118" Carada, Denon 3300, PS3, Axiom QS8, PSB 5T, B&W sub, levitating speaker wire