Dear @rvpiano : Looking to your speakers specs I read that the subs are controled by DSP software. Now, due that the subs goes to a deep low bass frequency as 13hz could be that you can help you to optimize your room/speakers quality performance levels at your seat position through and external DSP software/unit that can makes measurements about.
Just a possibility to improve what you already have.
Regards and enjoy the MUSIC NOT DISTORTIONS,
R.