Thomas, thanks for the feedback. I think the Theatre 3's are pretty nice too. It's just that all the accolades go to the bigger Theatre 4, so you start to wonder if there's a huge difference.Unfortunately, my Theatre 3's are under-used, as it's hooked up to an entry-level Sony HT receiver for HT purpose. Every so often, I bring down my gainclone or tube amp to realize the full potential of these guys. As an added bonus, the Delta 12LF are really nice looking drivers and dimensionally matches up with the width of the horns.
Gar.