Which subwoofer?

I'm a huge fan of my SVS PB2000. I've owned Velodyne and Monitor Audio subs. This SVS is in another league. House shaking low end, great control and presence. I enjoy the ability to use the phone app to really dial it in. For me it would be a no-brainer. 

I've owned Velodyne, SVS and RBH subs - and now have a JL F112 V2.  The JL is in a completely different league in my system.

My main listening room is 13’x9’. I run three HSU subs. To my ears,they work very well. 

Martin Logan makes push/pull subs (top of their line) that are fast and just right for your Martin speakers. -1 For Hsu or ANY brand that have drivers that face downward, passives are okay, but not desired in my world. 2¢

@bdp24 

Thanks for the perspective! I will do some digging at Audiocircle.

In my case my dipole (naked) 18" midbasses go from 65Hz to 275Hz. I agree there is some weight loss (vs a sealed 18") but I have not heard this level of articulation before. Large midbass, though!

I noticed you xo your GR Research subs at 180Hz. What's your view about how much difference it makes to have sealed vs OB subs below 70Hz? I'm sold on the advantages on dipole above that, but wonder if taking the sealed sub DBA below 65Hz wouldn't be the most practical approach and deliver the same sound quality.