Alright, I've hit these things HARD! I've played tons of Bassotronics through them at high enough SPL that my entire upstairs is quaking from one end of my house to the other. Bassotronics has lots of infrasonics that I figured would utterly destroy these 125s. But nope. I do smell new subbage which is very normal at these high SPLs. But absolutely no audible port, driver or cabinet noise. Very controlled. Very impressive.

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