Aewhistory: You can use a 2W or 2Wq for LFE in addition to using it as a sub for the satelite speakers. The 2Wq adds an adjustable Q control, which may come in handy if you want big, booming, home theater-style bass instead of the tight, controlled and accurate bass the Vandy subs are known for. If you have one of these subs, tell your processor that the mains are large, the other speakers are small, and that there is NO subwoofer. This will send the bass from all channels and the LFE to the front two channels, where the Vandy crossover/resistor scheme will send all the bass to the 2W or 2Wq.
That said, the V2W was designed specifically to use the RCA subwoofer output of a pre-pro.
IMHO, these are all excellent subwoofers. I have been using a pair of 2Wqs to augment my front mains for several years, and i really love 'em. I use an old Def Tech sub for LFE and bass redirection from the center and surround channels. I guess it depends on how much you care about surround sound quality vs. 2-channel sound quality. Obviously, I care much more about 2-channel sound quality than surround sound quality. YMMV.
That said, the V2W was designed specifically to use the RCA subwoofer output of a pre-pro.
IMHO, these are all excellent subwoofers. I have been using a pair of 2Wqs to augment my front mains for several years, and i really love 'em. I use an old Def Tech sub for LFE and bass redirection from the center and surround channels. I guess it depends on how much you care about surround sound quality vs. 2-channel sound quality. Obviously, I care much more about 2-channel sound quality than surround sound quality. YMMV.