You bet, because even though you can't hear below 20Hz, you can feel way below.
![Eek! :eek: :eek:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
Also, seeing as how music is not the main concern, I would recommend using the sub that will go the lowest.
It is my belief that extreme LF is not as important for music. I find that a sub tuned to 25-28Hz LF is best for music.