The new version of the Silverline Prelude speakers should work well in your application. My hunch is that you'll like their sound/performance better than the N805's and you may not even need the Velodyne sub.
amp/speaker question
I have B&W 805N, Velodyne sub, and Jolida 502B in my bedroom system. These speakers have always sounded too bright with SS. This is my first tube amp and I am amazed at how good they sound with tubes. The problem is the Jolida is just not up to the task of powering these speakers. My dilemma is whether to buy a more powerful tube amp or more efficient speakers. I do not want to spend a ton of dough on a bedroom system, even though I do use it quite a bit. I am pretty sure powerful tube amps are quite expensive, but so are good monitor speakers. If I could bump up the volume about 20 percent and keep the same sound I have now it would be perfect. I listen to a lot of acoustic music. I would like to keep the cost to around 1000.00 used. So, new speakers or amp? Thanks for your help.