The TAD ME1 manual suggests closer wall side and front wall placement than KEF suggests for the R1. I heard the ME1 in that suggested spot at a show. The bass was lumpy as expected from that small speaker, but to be fair others in the room expressed they liked it. Despite that I really, really like its is smooth, graceful presentation and tonality without it crossing over in to being boring and frustrating. Not a particularly high resolution speaker, but neither is the R1. The R1 - you may find - blows out the LS50 for every nickel of the $6500 premium. I am interested in hearing your thoughts between the TAD and the R1. How interesting that a dealer carries both KEF and TAD and has those models in stock. Your room dimensions are subject to difficult bass problems with mid and HF more easily solved. It is hard to project your success or understand placement restrictions, especially with the A3 and any three-way. Hopefully your dealer can help you test it. Speakers I know first hand do well in small rooms are the Wilson Sabrinas and YG Carmels (both versions), and JBL 4367, but they themselves are fat.