Thanks. The fronts, center and surrounds are all made from parts and plans that came from Selahaudio.com. They all use vifa drivers. The fronts were called the RC2. He no longer has them on his site. The center is a 3 way that he developed to match the rc2 and the surrounds use the same drivers as the fronts. He has alot of different speakers and will custom make you anything. And his prices are very very good. I bought just the parts and plans and made my own cabinets to save some money.