Feature 1Space Saving Design: The car subwoofer combines the amplifier and subwoofer into one, effectively saving space in your vehicle. Enjoy powerful bass without sacrificing valuable interior space. 2Pulse Width Modulation (PWM): The subwoofer utilizes PWM technology to eliminate current sensing losses and secondary feedback circuits, allowing for precise control of output voltage and current, ensures optimal performance and efficiency. 3Variable Low Pass Filter: The subwoofer features a variable low pass filter that eliminates all notes below the set filter frequency, allows for customizable sound tuning and ensures that only the desired frequencies are produced. 4Variable Bass Boost: Adjust the bass to your preferences within the enhancement range. The subwoofer provides subtle rumble, allows you to tailor the low end sound to your liking. 5Protective Cover: The subwoofer comes with a high strength protective cover that effectively protecting the speaker, ensures the longevity and durability of the subwoofer, protecting it from damage and wear.Item Type: Car SubwooferMaterial: Aluminum AlloyPower Supply Voltage: DC12VRated Power: 600WMaximum Power: 800WTotal Harmonic Distortion: <0.4%SNR: >90dBFrequency Response: 20Hz to 150HzHigh Levels Input Sensitivity: 0.9V .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Car Subwoofer1 x Extended Volume Cable1 x User Manual1 x Connection Cable1 x Screw Kit