Earthquake's Q10B Is an Advanced Sub harmonic Bass Shaker, just as its predecesor Quake 10.0, the Q10B is an awe-inspiring sub harmonics unit designed for special-effects enhancement. These more advanced tactile transducers allow you to efficiently add super-sensitive low-frequency effects without using costly hydraulics or a bulky and expensive subwoofer. One Q10B bass shaker can easily replace three, four, or even five typical shakers. Q10B can move two or three theater seats or even a sizeable platform. Q10Bs are maintenance free and almost indestructible. With only one moving part, and a cast-aluminum heat-sink for excellent heat dissipation and protection from damage, the Q10B is the only shaker you'll ever need.