VERY INFORMATIVE AND NICE REPLIES FROM THE SHACK BOSSES
There's simply nothing I can add, except maybe that I am facing exactly this situation now, and discovered that after taming a 20 db peak at 35 Hz, my sub (which was "artificaily" strong before BFD) is lacking headroom now!!
Nevertheless, I can't agree SQ isn't better!!! But yes, the subs need much more power to give me the slam I had at 35 Hz, along with all other frequencies down to.... That's the point indeed!!
Blaser