Subwoofers

 Have had a variety, going back to the late  '70s with the original M&K 1a's (pair) with my Dahlquists and Magnepans, Velodyne ULD-15, and currently a Earthquake Supernova. As full range speakers go, most don't shake the room unless it's at the expense of accuracy. Always enjoyed the flexibility of a sub or two, even before it became a household word.