I'm not so sure that using the VP180 vertically is such a bad idea. I've heard Alan say that the VP150 in a vertical position sounds good. If that's the case, then perhaps almost any center channel speaker would sound good in a vertical position (excpeting those where they crowd all the speakers together).

It looks like it's only using a vertical speaker horizontally sounds bad.

https://docs.google.com/spreadsheet/ccc?...amp;usp=sharing