You know, these are American loudspeakers done for folks who are driving cars with cabins that are bigger than average European rooms. Consequently, there is a likelihood that they really need rooms bigger than a normal European room. According to the Stereophile review they need to be pulled out 1.5 metres from the wall. I am not familiar with the Sophia, but yes with other wilson products. They really need space. If you don't give them the right space, they likely will be very boomy. Maybe, you can convert your flat to a loft-house. Without any internal separation you may have space to put them properly.
