Full Range, Class A/B, PWM MOSFET Power Supply, High/Low Level Input</br>LED Power Status Indicator, Phase Switch, Adjustable Input Sensitivity</br>Variable Bass Boost, Subsonic Filter, Low Pass Filter, High Pass Filter</br>Soft Remote Turn-on, Thermal, Short and Overload Protection, Blue Illumination</br></br>Product Description</br></br>BOSS Audio Systems low profile amplified subwoofer enclosures are perfect for a system that needs more bass, yet lacks extra space. Durable, thin and powerful in design, perfect for small amplified enclosure solutions.</br><br/>http://www.amazon.com/gp/product/B01G0WTIJ0