8'' Low Profile Subwoofer System Suitable for Under-seat Installations..Low Level RCA Input - Phase Shift Switch: 0 or 180? - Thermal, and Overload Protection Circuits - Weight 10.5 Lbs.High Level Speaker Line Input - Adjustable Input Sensitivity: 0.2V-3V - Fuse: 2 x 15A.Green LED Power Status Indicator - 0 to 12dB Variable Bass Boost (@45Hz) - Max Power: 600 Watt.Red LED Protection Status Indicator - Low Pass Filter (50-150 Hz) - RMS Power: 300 Watt.Remote Bass Boost Level Control - Remote Turn-On Soft Start/Stop Delay - Dimension: 14. 5''(D) x 9.5''(W) x 3''(H) This Pyle low-profile, 600-watt subwoofer system packs killer thumping bass in a slim package. Works great in any space, especially under-seat installations – the small footprint means space is not a problem with the PLBASS8. This model accepts both low level RCA and high level speaker line inputs. It has a remote for bass boost level control within the comfort of your vehicle. A low pass filter prevents annoying subsonics from distorting your signal. And thermal and overload protection extend the life of your product and ensure the safety of your vehicle. Weighs 10.5 lbs.