To meet all installation needs, the Ford Falcon Hertz plug and play speaker upgrade package gives you a seamless installation method, without giving up on Hertz quality and performance, the Dieci coaxes were 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 composite cone provide the optimum ratio between installation friendliness and sound with dynamic and emotional impact.