To meet all installation needs, without giving up on Hertz quality and performance, Hertz DCX 165.3 car audio coaxial speaker is designed with maniacal care to provide a linear frequency response and ensure high reliability. A Neodymium magnet, PEI dome tweeter, built-in crossover, TPU (Thermoplastic polyurethane) surround and a pressed-paper cone provide the optimum ratio between installation friendliness and sound with dynamic and emotional impact.