So I'm contemplating a foray into the DIY world with a Rythmik subwoofer kit. Currently I'm having trouble deciding on which to go with. My room size is ~3500 ft^3 that includes a kitchen and dining area with an open staircase leading to the second and third floors. I will primarily use this system for HT and gaming and since I live in a townhome, will not be blaring music at reference levels very often. High SQ, dynamic and articulate bass is what i'm looking for and the Rythmik seems like it might be the answer.

Can anyone offer opinions on which sub setup I would be better off with? I'm also considering possibly adding another sub later which is causing me to lean towards the DS1500 for now. This sub will be paired with my Ascend Acoustics CMT-340 SE L/C/R and CBM-170 and all of it is tied together with a Pioneer Elite SC-05.