What sub do "U" use ?

I use a REL Stentor 111 for surround with nautilus 802's & 805's

I'm with Elizabeth.. when I had an apt I had 1 pair of spkrs, Spica TC-50's played at most moderately loud. Otherwise used my Stax Labna pros.
Now in my house, I use a Rega Vulcan with my Ensemble speakers. Very musical sub I like alot but won't get super loud.

Pair of Mirage BPS-150i through a LFX-3 crossover.

RBH 12-SE

Currently using a pair of Vandersteen 2WQ subs with Magnepan MG 3.6R mains in stereo. For HT, a V2W is added in.