FWIW -- I have a friend that moved from the Sophia 1 to the Yvette and he said there was minimal improvement. It is understandable as it is simply and upgrade on the same overall size and design. As suggested, maybe the Sasha line would be a better fit for your space.
My current issue is similar as I recently acquired a pair of Wilson 1. My space is approximately 16x45 with 10' ceilings. My former speakers are Platinum Audio Quattro that use four 4.5 in drivers(2 mids 2 low). They ran full range(mfg claim down to 31Hz) and I have two Hsu Research TN 1225 crossed over at 62Hz. This combination worked very well. The Wilsons create almost that same low level extension when I am seated in the music room with the Hsu turned off. It doesn't blend with the Wilsons as I suppose the frequencies are competing. The interesting thing is once I leave the sweet spot and listen in the far end of this space(dining room) or around the corner in the kitchen, the sound isn't as full as my former setup. The sub's bass carried through the house better.
You may also benefit from a setup incorporating subs, especially with our similar taste in music as my collection is heavy in those 3 genres as well.
