Hi all. O.K., I have a Wizzy 10 that I've been using for a couple of years now. Quite happy with it over all, but have gotten curious lately about more/better sound. Aside from issues of portability and ease of transport, what would be the differences in sound between adding a second 10 or going with one of the Wizzy 12" speakers? I'm playing a Shen Willow, FC pickup and a Clarus into the Wizzy. Thanks!!