Movies should be felt as well as heard! The Aura AST-2B-4 Pro Bass Shaker brings new sensations home theater to life with its resonant, earth-shaking resonance. Movies, sports and music will rumble to life as the vibrations of the audio's bass travel through you. The Aura Pro can be mounted directly beneath or behind any theater seat. Then simply connect the Aura Pro to an amplifier, just as you would a speaker, and let the action begin. Multiple Aura Pro bass shakers can be implemented using a parallel wiring configuration.