The most important thing with subs is to have a lot of them in different locations. Four small ones distributed around the room is way better than any one or two no matter what or where or how powerful. This is a lot easier to say than to understand so if you are serious then do a search and read up, you will find nothing but screaming praise from those of us who have actually done it all saying the same thing. Also those who have not (and therefore do not know) are not shy in spreading what they do not know. So you kind of have to read past that. Try.
If you can really only have floor space for one, or two, then Tekton 4-10 is the way to go. Get two.
And just to be clear this is not to have two times or four times as much bass. The reason, which you will find clearly explained all over the place if you look, is every sub no matter what or where you put it generates peaks and nulls. Using more subs in different locations creates more peaks and nulls in more places. But having four lets you run each one at a lower level. The result is they all sum together into much smoother, deeper and more powerful bass than you can get any other way.
If you can really only have floor space for one, or two, then Tekton 4-10 is the way to go. Get two.
And just to be clear this is not to have two times or four times as much bass. The reason, which you will find clearly explained all over the place if you look, is every sub no matter what or where you put it generates peaks and nulls. Using more subs in different locations creates more peaks and nulls in more places. But having four lets you run each one at a lower level. The result is they all sum together into much smoother, deeper and more powerful bass than you can get any other way.