Hello. I am updating our family room and looking at in wall speakers and the SPS look great. The room is a secondary room (we have a dedicated media room) but would still like great sound for music especially but also for the occasional movie/tv. Can the SPS handle this without sub? Mix of probably 70% jazz/classical music and 30% tv/movie. I know that with some in walls it is recommended that you add a sub even for music because they don't drive much bass.

If you can fit a SuperSub X along with your SPS, you'll have a great full-range system. SPS alone will sound good but won't have enough bass output for movies and some music.