Rythmik vs JL vs REL

I might also consider SVS's new sb-3000. Lots of room correction built into the control app. You can download it for free and check out the settings. I'm currently deciding between the sb-3000 and a rythmik f12.

"...might also consider SVS's new sb-3000"

+yes to considering new SVS SB-3000

I'm also trying to decide between sub brands, and am shopping dual units as upgrade from single REL R-328 which to my listening has sounded great over past 5 years.

But I got this hypothesis that for the results & performance, REL is overpriced relative to other brands.  I'm still considering them in my short list, though:

• SVS SB-3000 x2 ($1899 total)
  
• Rythmik F12 x2 ($1786)
  
• Rythmik F12-300 x2 ($1400)
  
• REL S/3 x2 (used, $2400 + $100 ship)
  
• REL S/3 x1 (used, $1200 + $100 ship) + existing R-328 <= yes it can be done, got very helpful & detailed how-to instructions from John Hunter, REL owner & lead designer
  

So I don’t need the room correction as the anthem already has it. Also does anyone like Hsu Research subs? For the price I could get 2 of them!