Rockford Fosgate PS-8

8" Amplified Loaded Subwoofer Enclosure Built-in 150W Amplifier Power Handling: 150 watts Frequency Response: 25Hz - 150Hz Hi-Level / Low-Level Inputs Built-in Adjustable Bass Boost EQ Built-in 0°/180° Phase Switch Adjustable 12dB/Octave Low-Pass Crossover - Variable 50Hz - 120Hz Short Circuit, Thermal, Reverse Polarity Protection Detachable Power/Ground Connector Includes Remote Level Bass Controller Dimensions: 14.4" (365mm) H x 9.4" (238mm) W x 3.3" (83mm) D 1-Year Dynamic Autosound Warranty