8'' Slim Marine Woofer - Phase Shift Switch : 0 or 180° - Thermal , Short and Overload Protection Circuits - Dimension : 14.5''(D) x 9.5''(W) x 3''(H).RCA Low Level Input - Adjustable Input Sensitivity : 0.2V-3V - Fuse : 2 x 15A - Weight : 10.5 LBS.High Level Input - 0 to 12Db Variable Bass Boost (@ 45Hz) - Max Power : 1000 Watts.Green and Red LED Power Status Indicator - Low Pass Filter (50-150 Hz) - RMS Power : 300 Watts.Remote Level Control - Soft Delay Remote Turn-On - RMS Power of Amplifier : 100 Watts The AQTB8 is a slim marine woofer from Lanzar that's perfect for situations in which space is limited. Now you can equip your small boat or other marine vehicle with the same bone-crushing bass you're used to from Lanzar Car Audio subwoofers - 600 watts of it! This subwoofer is equipped with low and high level inputs, remote bass boost level control, adjustable phase controls, and a low-pass filter - so you can tweak your bass to the exact way you want it. Thermal and overload protection keeps your equipment safe and secure. Red and green LED indicators show protection status and power.