Geez; I have a cylindrical Subwoofer System as well; from HSU. Mine are two of the HSU TNN-1220's (4 ft tall). Also the matching 500 watt Subwoofer Amplifier from HSU. I( have been extremly happy with this system. It seems as though, people with Cylindrical tall Subs have problems with cats wanting to have sex with these speakers. Well, I know I will never have that problem as I am extremely allergic to cats. I think that there are considerable similarities between the HSU, and SVS models.