Proac D38, Wilson Sophia II, Avalon Ascendant???

Chetiar I used to own Proac D38's and I would agree with Zeeshanb's comments. Compared to the smaller Proacs, the D38's are more dynamic and sound less constrained. The lower registers have the most improvement, but how much you get depends on how well you set it up. I have heard my D38's sound horrible but once I positioned them correctly and applied some room treatment (I was in an over-bright room) they came together really well.

Chetiar it might be because Proac and Wilson sound is quite different :) I have not heard the Sophias, but I have heard a couple of Wilson W/P's. The bass hits you like a fist in the chest, with clean, natural and extended midrange and highs. Proac sound is different, with a more prominent and warmer midrange, and more subtle bass. Suits different types of music and different listeners.