That is exactly what I was talking about. Thanks for the thorough posts explaining where I was going with this.
If you watch an action movie at the DTS reference level of 105dB, there are plenty of films that will also cause the 2235Hs in a 5 cu ft enclosure tuned to ~30Hz to slap those mass rings silly. You can filter your signal below 30Hz, but comparing that to a Sub1500 that pressurizes the room to 20Hz and below, you are really missing something.
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