My incommodious room favors small standmount and panel speakers that some audiophiles would say
require a subwoofer.
But I was never inspired to try one until a new category of subwoofer appeared: the "micro" (aka soccer-ball) subwoofer. The minute I saw the little KEF KC62, a 10" cube, I imagined it could do 0100Hz and back to zero in record time. I reported on the KEF microsub last month, in Gramophone Dreams #49.