Hy,

To make the comparison as fair as possible, I suggest you calibrate each speaker to the same SPL level using an SPL meter. I also suggest that you listen to a number of different types of music at varying levels of gain on your receiver. Finally, try to listen to the details, nuances and spatial cues from each speaker type. You and the Axioms should form an equilateral triangle.

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