I don't know if you've purchased a sub yet or not. The SVS is by far the best sub for solid, clean good bass. Not boomy in any way. In fact the SVS will out perform the other subs hands down.
If you have purchased a sub other then the SVS already, you can purchase the SVS and compare. I would say it is safe to say you would be bringing the other sub back. Of just save yourself some time and get the SVS PB 12-Plus/2
It's a beast.