I've tried M3, M50, M5, M100, M10s (stacked M5s), M8 (M3s stacked on M5s), M103s (M3s stacked on M100s) and M105s (M5s stacked on M100s). I tried a few minutes of Planet of the Apes on all of them and a few minutes of Game of Thrones both on Blu Ray. I admit it is *possible* there is an audible difference on another soundtrack.

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