Polk Audio PSW125 12 inch 150 Watt Powered Subwoofer

* 12-inch Dynamic Balance Composite Woofer Driver creates “tight,” musical bass.
* Downward firing port couples to the room for more bass impact.
* More powerful motor structure for a higher BL product,(the measure of the motive force applied to the cone) results in louder, deeper and punchier bass than previous Polk woofers in this price category.
* Klippel Optimized woofer – By using a state-of-the-art Klippel Distortion Analyzer, Polk engineers were able to optimize the woofer’s motor structure, voice coil alignment and suspension for the best possible performance even at extreme listening levels.
* Compression Circuitry limits distortion at earth-shaking volume levels.
* Built-in High Current Amplifier supplies all the good, clean power you need for big bass. The PSW125 features a Class A/B amp.
* LINE and SPEAKER level inputs ensure easy hook-up compatibility with virtually any system, while the PSW125 also has an Unfiltered LFE Input for use with low-pass filtered subwoofer output jacks.
* Amplifier features: Adjustable Low-Pass Crossover, Phase Switch and Subwoofer Volume Control to more easily control your bass output and the sub’s blending characteristics with your front stage speakers.
* Signal-sensing “smart amp” Auto ON/OFF Circuitry “knows” when to turn itself on and off.
* Non-resonant MDF construction with internal bracing for deep bass impact with superior detail, accuracy and musicality.