Those drivers can be abused pretty fine. It are SPL/SQ car subs. I didn't try it out back then for no reason. I had these subs. I asked other audiophiles on other forum that no longer exists. They did the math back then. They did calculations. They told me with dsp and such you can flatten the curve nicely. They need some juice. And they should do pretty fine in smaller room. And ofcourse not comparable with a dedicated HT subwoofer of similair price range. But I had these already. So they did cost me nothing at that point. I just needed get sealed eclosure cause no way these can be in a decent size enclosure ported for HT. And it proved to work fine. I reach enough in the low end in movies that you feel it without hearing. I'm glad you're getting what you want out of the them. I'd look at a tranform to extend their low end below their f3, that is really the only way to get a sealed sub, one designed for car audio, to below that. There are not a whole lot of subs that can do this without creating other issues. Here is an price example of this. https://www.minidsp.com/applications/advanced-tools/linkwitz-transform?gad_source=1&gad_campaignid=20946961638&gbraid=0AAAAAD0BHDzIg0kv2KS0MLDydsl53Ti0s&gclid=Cj0KCQjwpf7CBhCfARIsANIETVq7RdlbcY2d4uevbkFY_s3WCdjkTA33F-PSjjx2bChdvmEwbhwWm0caAtkkEALw_wcB