Axiom also introduced a narrower version of the 160. The "problem" with that is the sphincters are in the back so if you have it positioned closer to the front wall, then you may get boundary reinforcement. If you get the 4500H, the XT32 will compensate for that no problem!

House of the Rising Sone
Out in the mid or far field
Dedicated mid-woofers are over-rated