Feel what you've been missing from movies, music, and games, with ButtKicker's BK-LFE tactile transducer! The patented magnetically suspended piston design provides the lowest frequency response of nearly any transducer made, and the virtually indestructible design will provide years of enjoyment. Highlights * Patented magnetically suspended piston design * Lower frequency response than nearly any other tactile transducer * Nearly indestructible design, with thermal cut-off switch * Incredible power handling * Mounts to floors or furniture, transforming them into a Silent Subwoofer Product Details ButtKicker BK-LFE Low Frequency Effect Transducer for Home Theaters ButtKicker® brand BK-LFE low frequency effect audio transducers have been received with rave reviews around the world since they were introduced in late 1999, and for good reason! Instead of using the traditional voice coil design of most tactile transducers, ButtKicker transducers are built using a revolutionary, patented magnetically suspended piston design. Not only does this design create more accurate low frequency effects (drummers swear by them for monitoring), it also lasts longer! The magnetically suspended piston design pushes the resonant frequency of each ButtKicker transducer down to an ultra-low 9 Hz, allowing for a truly infrasonic, and usable, frequency range of 5 to 200 Hz! While other transducers produce their peak output at 60 to 80 Hz, ButtKickers are still going strong up to three octaves lower. A 3-1/4 pound piston is used within the BK-LFE for superior transduction force. One BK-LFE ButtKicker transducer can easily replace two to four bass shakers from other companies, and delivers the 4th dimension of sound with realistic tactile and sound effects such as earthquakes, thunderstorms, rocket launches, tidal waves, explosions, tornadoes, volcanoes, dinosaurs... and high quality musical bass playback that you never knew existed on your music, movies, and video games. The ButtKicker BK-LFE is designed to be mounted directly to suspended floors, chair and couch frames (kinetic isolators are recommended and sold separately in the Related Items section), as well as platforms and risers. Each ButtKicker transducer piston is built using large gauge coil wire and is surrounded by a large metal housing that acts as a heatsink. Should the coil wire exceed 150°F (75°C), an internal thermal switch disconnects the ButtKicker from the amplifier for cooling. This allows for years of maintenance-free use! Five-way binding posts offer nearly endless amplifier connection options, and all ButtKicker transducers are proudly made in the U.S.A. PRODUCT SPECIFICATIONS Application Low Frequency Bass Shaker Impedance 4 ohms Power Handling (RMS) 400 Watts