I have being looking for a subwoofer to match my 5.1 system(Dali Zensor 7s front, 3s, rear+center) other than the Dali e-12f, but at the same price range(400-500€). I've been looking at the svs pb-1000, but I'm not sure if buying a sub from other brands/series would benefit the overall result since it, according to some, would mess the system balance. Any thoughts/suggestions?