Speaker upgrade...

Thinking the upgrade(wanting to try something different) bug has bitten me, and I'm wanting to try some different speakers. I'm currently using Dunlavy SC4's which I'm perfectly happy with and have no issue with and could continue to live with for many more years. So this isn't a I don't like what I have post but more of a would these speakers be an improvement over my current speakers. I'm looking at BW N801 and Avalon Radian HC speakers.

Has anyone spent time with the above mentioned speakers who could chime in with what their thoughts are?