I use an SVS 3000 Micro sub in my home theater system. Using the SVS app, I have set up and saved two settings. I use one setting for TV listening at low volume and another for listening to music and movies.The low system allows me to get good sound without the bass booming up to bedroom that is right above the home theater/family room. My spouse is very happy about that.
The SVS 3000 Micro has transformed my modest home theater system. I have five NHT Super Zero speakers mounted on my walls and the crossover is set at 120Hz. Using that high crossover and a bit of subwoofer EQ, I get big sound with the tiny acoustic suspension Super Zero's.