I know nearfield has its proponents, and I’m only here to say that Ime, and experimentation, near field subs have proven too difficult to integrate. Even with a good hand off to the mains, I always felt like I was listening to the subs and not the whole system. I did have 2 of my subs behind for a long time, but it was not near field since each was 8’ away corner loaded. This was pretty good, but I got better results with them up front.
Personally I feel you’re suffering analysis paralysis. I also think there is too much weight being put on multiple subs(although I use 3) since you’re a beginner, and afaik are focused on one primary seat. I think you’re best option is buy one great sun that’s on the list and try it out. That might mean SVS since you’ve voiced concern over the HSU being so much less expensive, and you can also send it back disk free. Have them send you a pc2000, or whatever you want, and take the time to integrate it(which is easier than 2(get your feet wet) and see how it goes. SVS also has a great upgrade path too. I have no doubt you’d be happy with any sub that’s been discussed, including the HSU’s but maybe for your peace in mind go to SVS. They aren’t one of the best for nothing!i mean this respectfully, but most of us chiming in, have been doing this for a looong time and while you did understand much of the advice, you’ve even admitted yourself that it’s mostly Greek. In this light I honestly feel like baby steps will keep you interested, and keep you learning and understanding instead of possibly over who and frustrated. The latter can leave people with less than great results and they can lose interest quickly. Don’t want to see that.
Just my .02.