I don't like or use subs (I say upgrade the speakers/amps, but understand may not be feasible/practical & you may really like what you have) but the rules I have always heard (as subs are so tough to integrate properly) is (1)buy the most expensive sub you can and (2)get one with an included bass amp as running a sub off your amp is pretty much a mess. That bottom bass octave is the toughest to get right and it will cost you. There is music down there! Remember, good bass frames your soundstage.
(you may not be liking the bass because if your amp but I do understand the maggies can be a little bass shy (the 1.7s)).
Good luck.
(you may not be liking the bass because if your amp but I do understand the maggies can be a little bass shy (the 1.7s)).
Good luck.