Feature 1 Space Saving: The car subwoofer combines the amplifier and subwoofer into one, effectively saving space in your vehicle. Enjoy powerful bass without sacrificing valuable interior space. 2 Pulse Width Modulation: 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. 3 Variable 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. 4 Variable 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. 5 Protective Speaker 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 Package List1 x Car Subwoofer1 x Extended Volume Cable1 x User Manual1 x Screw Kit