The ZTSV65 is a plug-and-play system specially designed for Volvo FH & FM Trucks. This woofer and tweeter combo features plug-and-play connectors. The system comes with 6 & 12dB filters with tweeter damping for pure and clean sound, providing a premium audio upgrade for the Volvo truck. The kit has a balanced and natural sound with an excellent clean high frequency and a power lower-end bass sound. The tweeter is a 25mm soft dome tweeter with a Neodymium magnet. The kit includes individual mid-range cable filters and a tweeter for easy installation. The tweeter filter also has two steps of level to easily adjust the sound level of the tweeter depending on the installation. Full mounting instructions for the kit are included in the package. The kit is made for left and right door mountings and replaces the original dual paper cone speaker with a high-end dual concentric coaxial speaker to provide fantastic performance across the entire frequency range, making them truly impressive when compared to the standard factory offering or even higher priced options.