Clear Sound Quality: Designed for subwoofer, with exquisite sound quality and 3D surround sound effect, so that you can be in the beautiful melody. Universal: 6in coaxial speaker is specially designed to fit any car audio system, universal, perfect for your rebuild, repair, and maintenance needs. High Reduction Degree: Coaxial speakers have a high degree of reproduction of natural voice and human voice, giving you a better experience. High Power: The speaker adopts a double voice coil and double magnet design, which is better than the ordinary single magnet and coil. The magnet is large and the power is large. Long Lasting: Automotive speakers are made of plastic material, impact resistant, with excellent durability, has long term service life.