Would I be correct in assuming the JBL MS-8 would not work for my configuration?
1 each Front Center Channel
1 each Rear Center Channel
2 each Front Midbass 7"
2 each Front Full-Range 3"
2 each Rear Full-Range
1 each Subwoofer
But if I removed the rear center channel, then all is OK?
Or use a crossover between the front midbass/full-range to treat them as one channel each side?
One thing to note is that it would be better to use a coaxial with it's own tweeter for the rears, over a full range speaker that will play high enough but will have a limited off axis response pattern that won't extend that high.