The TMMMT design provides better imaging with the two tweeters in the outboard positions, and reduces suckouts common with the MTM d'Appolito design.

The overall presentation of Axiom's design is more open and natural than the d'Appolito design, providing a more realistic and dynamic listening experience.

And for the record, I don't own Axioms yet. I have heard them and very much enjoy them, and as soon as I can sell my Paradigm Monitor 11 based HT system I will make the move to Axiom.