Joe, no problem at all there. There are compromises of course

While you will get more bass, you lose the utterly transparent nature of these speakers.
If bass is your drug, the x-mtm encore at $549 is -3 @ 40Hz. We also have the $299 x-ls encore that is also -3 @ 10Hz lower than x-statik.
As a minor aside... we also have the larger x-optima in development that takes all the greatness of the x-statik's and adds loads more bass.
When designing speakers, we look at all the possible scenarios and uses and what people would want in their homes. We know that we will sell a lot of these speakers to those that WANT to pair then with a sub (they are killer for HT). We also know there are lots that want these but with more bass as they DON'T want to use a sub (those like you). Hence, the x-optima (as well as the x-otica

) That is why all the different models exist... to fill all requirements
Thanks,
Sean
AV123