Originally Posted by deano86
I think to some degree your expectations of what your rear surrounds are supposed to sound like may be exceeding what they are actually supposed to do. I also have rear surrounds and I find that it is very much soundtrack/source dependent with what sort of effects I notice from them
Yes this is so true. Which makes it all the more difficult to evaluate the effectiveness of a particular layout. For any layout changes you make, you will have to listen to the setup for a *long* time with a lot of different source material to see the effect of the changes.
I seem to remember watching 7.1 BluRays where a character on screen was being repeatedly shot by someone who would be situated behind the camera/MLP and there were very loud and full gunshots from directly behind me. I remember thinking "I'm glad I got decent bookshelf speakers back there instead of something small that could only go down to 120Hz or so." I even seem to recall getting a similar effect from 5.1 material using PLIIx. But I haven't heard the effect in quite a while, and I just happened to have moved my speakers around. Perhaps something is "wrong" or perhaps I haven't listened to anything recently with aggressive rear sound.
So, maybe it's a matter of me discovering decent source material with which to test the issue. Not just movies, but a list of particular scenes from movies (at least some of which I own or could rent). I've been looking for such a list online, but have yet to find one.