To meet all installation needs, without giving up on Hertz quality and performance, Hertz DCX 100.3 car audio coaxial is designed with maniacal care to provide 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.