Yes, I am adding a sub to my system. I have Klipsch SP-1's, SC-1, SS-1. BUT, NO SUB. The Sp-1's each have powered 8"subwoofers in them but they don't generate the deep rumble I want. Klipsch subs don't get deep enough either which is too bad because oterwise I'ld match them up. The PW-2200's go as deep as 18Hz and for a retail of CDN $950 they are a good buy. I spent a lot of time looking at the SVS site but although dollars are similar the hassle of shipping and cross border stuff is something I want to avoid. My ears and room will probably not notice a huge difference between the PW-2200 and the SVS, at least that is what I have been told. Your thoughts?!