Nicholas, as you have read on all the forums...subwoofers can be an emotional topic. I have been involved in more than enough of them, and I still have buttons that can set me off.
The bottomline is there are differences, and only those that have actually compared subs will understand them.
If you can't compare, it is safe to say that either will make you happy. In that regard, it is a no lose situation. If you want to get what is absolutely the best for you, then you owe it to yourself to try the ones in your list.
As far as all the negativity on the forums, it is my opinion that they are almost useless for a newbie when it comes to subs. You really have to dig to get good information, and sometimes it is better not use the forums at all.
For that infrasonic pipe organ stuff, even that has texture.
-curtis
main/living room (5.1):
- LG OLED 77" C3
- Anthem AVM70, VTV AMPLIFIER 5 Channel 3+2 Purifi + Hypex
- Sierra LX for LCR, HTM-200SE for surrounds, Rythmik F15HP
- Eversolo DMP-A6, Oppo 205, AppleTV
bedroom (2.1):
- Vizio 65" P9
- WiiM Ultra, Fosi V3 Mono x 2
- Sierra Luna v2, RSL-10e sub
- AppleTV
I use Roon to manage the music streaming.