I think there are others but I use a Velodyne SMS=1 with my sub. Not only does it EQ the sub for the room but it works great if you want to experiment with crossover slopes. All via remote including remote volume, phase, polarity, slope.etc You can find them used for $250 =$300
I've found some recording engineers go overboard with the bass (Susan Vega recordings come to mind). Also, even when Audyssey is used to setup the Home Theater, I typically back off the bass -10 on my Onkyo receiver. I just want the option of tweeking when necessary.
Dweller, I agree. Typically for pop music not so much for Classical and acoustical. I'm constantly adjusting the subs volume as well as one preset for phase, and the, others for slightly different EQ slopes.