No. I have a relatively small room and acoustic center of the 7 is about 32" from back wall which while it has quite a bit of irregular surface diffusion is still pretty reflective.
I am in the camp that believes the rear firing tweeter could / should be deleted. Intent is in very absorptive rooms a bit of 901 bounce might be needed. ( words from the manual )...i never ran them on the 5a either.
In the right room and situation they must help. richard is a pretty frugal designer and he includes them so he must feel that overall they add value to owners.
Hope this helps
Jim
Tomic is just my favorite salmon fishing plug.....