Thanks for the link. That’s a very nice and concise explanation. All things considered I still prefer a tactile transducer for the very low bass. A subwoofer for the low bass and the mains for the mid and upper bass. Just my opinion. Though I am still considering a mid bass module for restoring the chest thumping I was use to when I sat closer to my M80s.

3M80 2M22 6QS8 2M2 1EP500 Sony BDP-S590 Panny-7000 Onkyo-3007 Carada-134 Xbox Buttkicker AS-EQ1