165 mm plug and play 2- way front system with an additional center speaker. Special designed bass, midrange speaker suitable for Opel Adam (off 2013), Astra J (off 2009), Cascada (off 2013), Insignia (off 2009), Meriva (2010-2014), Zafira Tourer (off 2012) and Chevrolet Malibu (off 2009), Buick Cascada (off 2013). Developed and produced in Germany. 2 - way system with glass-paper membrane Inclusive Centerspeaker 25 mm aluminum tweeter Glass fiber reinforced polyamide basket Customized x-overs