Fabtec 4400W car bass tube is a type of speaker system designed to enhance the low-frequency sounds in a car's audio system. It is typically a cylindrical enclosure made of durable materials such as Pure MDF Wooden and Plastic, with an Amplifier mounted inside. The bass tube is designed to produce a deep, resonant sound that can be felt as much as heard, which can significantly enhance the listening experience for music with heavy bass lines, such as hip-hop or electronic dance music. Fabtec Bass tubes come in an 8 Inch size and configurations, It's designed to fit in the trunk or cargo area of a car and They can be powered by the car audio system. Overall, the Fabtec car bass tube is a popular accessory for car audio enthusiasts who want to enhance the bass response in their vehicle's sound system and enjoy a more immersive listening experience. NOTE: An amp wiring kit is required to play this bass tube and an Amp kit is not included with this bass tube.