The Imagine T and T5 have a lot in common. Same driver size and layout and crossover points. I wouldn't call it a compromised design.
It would pay for anyone looking at a image tower to get a listen to both without the preconceived idea that the T6 is the better speaker simply because it's bigger and cost more. Some people may find they like the sound of the T5 better. And at its slightly cheaper price - that will give them more bang for their buck again.
I'm not the only one to suggest this... http://www.avsforum.com/avs-vb/showp...postcount=2543