Feature: 1. SPACE EFFICIENT DESIGN: This powered subwoofer is expertly crafted to fit snugly beneath your car seats, optimizing precious space while significantly elevating your car's sound system to produce deep, robust bass for an enhanced listening experience. 2. ALUMINUM ALLOY CONSTRUCTION: Featuring an aluminum alloy casing, this slim subwoofer provides superior heat dissipation and comes with a sealed design that reduces resonance, ensuring stability and minimal noise for peak performance even when installed under seats. 3. FLEXIBLE COMPATIBILITY: This subwoofer is designed to accommodate both high and low level inputs and incorporates a built in amplifier, allowing it to work seamlessly with various car stereo systems and head units; its discreet wiring facilitates simple installation in confined areas. 4. ENHANCED SAFETY: With automatic power on technology, adjustable input sensitivity, soft delay remote activation, thermal guard, short circuit guard, and overload guard circuits, along with green power and red guard LEDs, it ensures your sound system remains secure from damage. 5. CONVENIENT REMOTE CONTROL: The included remote control allows you to easily adjust gain, bass boost, and crossover settings without altering your radio volume, enabling a seamless mix of bass at any volume level for an ideal listening experience. Specification: Item Type: Car Under Seat Subwoofer Size: 6 x 8 inches Voltage: 12V Rated Power: 200W Peak Power: 600W Impedance: 4 ohm Low Pass Filter: 50Hz-150Hz Frequency Response: 20Hz-160Hz Bass Boost: 0-12dB Signal to Noise Ratio: >90dB Total Harmonic Distortion: