MDF speaker rings for Alfa Romeo cars are designed for precise and professional installation of new speakers in the original mounting positions without the need for modifications to the bodywork or interior of the car. They are made of high-quality MDF (Medium Density Fibreboard). These mounting frames provide a firm hold and excellent acoustic properties thanks to their rigidity and ability to dampen vibrations. The offer includes MDF adapters compatible with the Alfa Romeo 147 (2000 -> 2010), 159 (2005 -> 2011), Giulietta (from 2010) and MiTo (from 2008) , which are designed for the installation of speakers with a diameter of 165 mm. The washers are manufactured on CNC machines, impregnated and varnished for increased durability. Thanks to their precise processing, they allow easy installation and improve the sound performance of the audio system by eliminating unwanted resonances. For vehicles with higher humidity in the doors, it is recommended to consider using plastic rings.