'It is also true that it tends to be more important to emphasize subsonic frequencies in the home theater environment versus the music environment where there is simply less emphasis on subsonic inaudible material.' Atually there are quite a few EDM genres that use infrasound, epsecially dubstep, trap and street bass. So if you're going for a sub for that kind of music you would need a good sub to reproduce those low tones. I did catch some spelling errors but I guess spelling doesn't really count if you can get the point. It's not enligh class.
