I agree with Mikej - if you're looking for more bass extension from the center channel, get the VCC-5. The problem with adding a sub to the center channel is that you tend to get dialog intelligiblity problems - the opposite of "open." The VCC-5 goes low enough to deliver satsifying bass, but doesn't smear movie dialog.
Vandersteen VCC-1 center and the 2WQ subwoofer
I was wondering if anyone has ever tried hooking up the Vandersteen VCC-1 in combination with a 2WQ subwoofer so that the deep frequencies are set to the subwoofer rather than all the info coming from the center channel. Does it help make a system sound more open and warm? The manual says not to try this arrangement. The manual says a 2wq can be used with the surround speakers so why not the center. I'm thinking someone out there might be doing this arrangement anyways. Is it worth it?