Hi Joseph,
The 534-SS dipole surround speaker is a flush mount design. It comes with the hardware that you need in order to mount it right smack against the wall. It has a groove routed in the back for cable management as well. If for some reason you have to mount them exceedingly high, you could use the BT38 mount to allow some down angle.
The 534-SS isn't designed to be stand mountable. It has a trapezoid shaped footprint which can make adequate support from a stand a bit tricky. If this is your best option, I would pick a solid stand that could get the speaker up at 48" or higher with a rather large base for support. Velcro may be your friend in this case.
Good luck and be sure to email customerservice@aperionaudio.com for a slightly faster reply to your more urgent product related questions.
Cheers!
CD
Caleb Denison