Feature 1Bass Enhancement: This car subwoofer is designed to fit snugly under your car seat, saving valuable space while enhancing your car's sound system. Enjoy deep, powerful bass that elevates your music experience and provides immersive sound during your travels. 2Heat Dissipation Housing: The 8 inch slim active car/truck subwoofer built in amplifier. Its casing is made of aluminum alloy, enhancing heat dissipation, while the sealed enclosure reduces resonance, increases stability, and eliminates noise. This ensures that the subwoofer stays cool even when placed under your car or truck seat. 3Easy Installation: With its hidden wiring and minimal space usage, underseat subwoofer can be installed in nearly 99% of vehicle models without causing damage, and it is easy to set up. 4Multifunction: This car subwoofer supports both high and low level inputs, making it compatible with various car sound systems and head unit devices. It features automatic turn on technology, adjustable input sensitivity, soft delay remote turn on, thermal protection circuit, short circuit protection circuit, overload protection circuit, and green power/red protection LED indicators. 5Remote Control: The subwoofer comes with a remote control (with gain, bass boost, and crossover control) that allows you to adjust the bass level without changing the radio volume, ensuring professional bass integration at any volume level. The remote can be easily controlled while driving. 6HiFi Truck Subwoofer: With a peak power of 800W, RMS power handling of 150W, an impedance of 2.6 ohms, low pass filter of 50Hz - 150Hz, bass boost of 0 - 12dB, signal to noise ratio (SNR) greater than 90dB, total harmonic distortion (THD) less than 0.4%, and 15A fuse.Item Type: Car Underseat SubwooferMaterial: Aluminium alloySpeaker Size: 8 inchesVoltage: 12VRated Power: 150WPeak Power: 800WImpedance: 2.6 ohmsLow Pass Filter: 50Hz-150HzFrequency Response: 20Hz-150HzBass Boost: 0-12dBSignal to Noise Ratio: >90dBTHD Total Harmonic Distortion: <0.4%Fitment: Fit for 12V power all vehicles Package List1 x 8 InchUnderseatSubwoofer1 x Controller1 x Supply Cable1 x Sound Cable1 x Control Cable1 x High Frequency Cable1 x Ground Cable1 x User Manual16 x Screw AccessoriesNotePlease refer to the instructions for operation details.