Pro Sound Comes Home This 400 watt, 12 inch powered subwoofer reproduces sound with incredible power, delivering the punch that puts the """"cinema"""" in home cinema system.The custom designed MDF enclosure provides unparalleled spaciousness and definition. The PolyPlas (polymer coated cellulose fiber) cone woofer traditional JBL engineering, the same technologies used in JBL''s Professional equipment that can be found in stadiums, music halls and movie theaters around the world.A high temperature, oversized, state of the art fiberglass voice coil and HeatScape motor structure allow this subwoofer to effortlessly and endlessly play all types of movies and music. The woofer is built on a cast aluminum frame, which reduces distortion and increases power handling capability. A low diffraction IsoPower baffle directs the sound power into the room, reducing distortion caused by cabinet vibration. The lock mitred, computer designed enclosure requires no bracing. The FreeFlow flared port increases bass response without adding unwanted port noise. The high performance, high efficiency, high output amplifier produces an incredible, room filling 400 watts of bass power. All Studio Series loudspeakers are equipped with all metal, 5 way, gold plated binding post speaker terminals. Amplifier Power (RMS): 400 Watts Low Frequency Driver: 12"""" PolyPlas cone Inputs: Line Level (switchable to LFE), BassQ and Speaker Level with gold plated, 5 way binding posts Outputs: BassQ and Speaker Level (High Pass with gold plated, 5 way binding posts) Low Pass Frequency: Continuously variable from 50Hz to 150Hz High Pass Frequency: 150Hz when using speaker level outputs Frequency Response: 22Hz Low pass crossover setting Dimensions (H x W x D): 17 3/16"""" (with feet, without spikes) x 16 3/16"""" x 18"""" (19"""" with grille)Warranty: 5 years drivers, 2 years enclosuresAuthorized Retailer:dynadirect.com is an authorized online retailer of JBL home audio products. Please be aware that if you purchase JBL products from an unauthorized retailer: JBL is not obligated to cover repairs under the warranty policy. JBL may be unable to assist you if problems arise. You may be purchasing counterfeit JBL products.Order Notes:Due to the size and weight of this item, it can only be shipped via Ground. Air delivery is not available.