I have a small system near field listening with Canton 9k 2 way stand mounted so I purchased an SVS sb 1000 pro before the price increase. I emailed Canton in Germany and asked the best frequency range to set the cross over and they got back to me the next day (impressive between 50 and 60 hz 24 dB roll-off ) I do not have the luxury to do the craw to optimize the placement of the sub they sit next to the cantons. Why, my family considerations hold sway on placement and size and I suspect in most homes this is true the tail does not wag the dog.
the SVS app has quite a bit of flexibility and control ( read about it) and you make changes at your listening position (sweet). The sub can be easily and seamlessly integrated with the Cantons.
Having said all this what I experience is dictated by what's playing upstream that is to say some CDs have great bass other CDs not so much. Consequently, my sub can sound boomy and muddy as well as crisp and tight based on the CD being played. Be that as it may, in all cases the SVS sb1000 pro is a bit underpowered currently set at 9+ out of 10 on its power output. I should have gotten the next size up but again I was told no big ugly boxes and you spent how much on those things. Ah, the price of domestic tranquility.