I know that under ideal circumstances bass shakers should only be used to enhance the movie experience for an already complete system with a real subwoofer. Having just moved, I no longer have a good place for my old SA-WM40 in the "theater" area, and was wondering if a pair of Aura shakers, if properly placed, amplified and calibrated (volume) could serve as an adequate replacement for the SA-WM40? My receiver always crosses over the sub output at 80 or 60. Having never experienced tactile transducers in person, I turn to you for guidance! EDIT I would probably mount the transducers to the underside of the queen-size futon which is in the middle of the listening area. It is very heavy, and has a metal frame. I would mount them to an MDF board or something.