the best use Subwoofer for under 1500

For brand new I'd recommend a REL Stratus III if music comes first, or the Q150E if movies are more important. Both perform well in both modes; it is just that they are slightly better at one, more then the other, because of how they are designed.

If you are talking used, then step up to the REL Storm III (music first), or the REL Q201E (for movies first).

All REL's let you run separate HT and Audio connections at the same time. The REL subs switch to HT mode when they receive an HT signal from a receiver or HT decoder; otherwise they work in what you could call Audio mode. This is what makes them my first choice. They are also very musical.

I am somewhat suspicious of recommendations that are in audio publications. Many seem to be driven by the need to get manufacturers to advertise, more than helping you. It comes in two forms in my opinion. Those that recommend a whole line of only a few brands (those who also advertise); to ones that seem to recommend at least one model by every maker of subwoofers (make every company happy in hope of getting an ad). Happy Listening!!