Binaural beats compatible with subs?

[Benjamin]

More generically - @Shannon - would listening to music conflict with subs?
Listening to trickling streams, waves or silence is just boring, so, for example, when wearing headphones could I play a silent sub in the background and then listen to music at the same time?

This also applies to fans... I typically have a fan on me in the summer when I sleep: this produces a 'white noise' that could also mess with subs.

Both are fine. If you're listening to music though you don't want it to drown out the subliminal. When i'd watch movies or whatever while listening i'd use ocean surf so I could hear it a little bit over the movie.