I strongly disagree with the opinion that the speakers are responsible for sounding good in your room. My advice is to find the speakers that sound best to you with your source and electronics, then perfect their placement in that room taking into account the dimensions, walls, and furniture. I recommend the Master Set Method. Only then can you perfect the reflections, Peaks and valleys. Imaging is a function of eliminating first reflections. At the first reflection point I use random books and CDs for diffraction. I also recommend corner absorbers as millercarbon says above. Further improvements can be made with specially designed products. Good luck.
