Specially tuned plug and play coaxial rear system suitable for the Opel Adam (from 2013), Ampera (from 2012), Astra J (from 2009), Insignia (from 2009), Karl (from 2015), Meriva (2010 - 2014), Mokka (from 2012) and Chevrolet Malibu (from 2009) and Buick Encore (from 2012). 165 mm (6.5") woofer with vehicle-specific, fiberglass-reinforced polyamide basket with sealing flange and vehicle-specific connection terminals for non-destructive, integrated and reversible installation in the vehicle. The woofer/midrange is equipped with a strong ferrite magnet. The fiberglass-paper sandwich diaphragm plays extremely dynamic and full-bodied warm. The integrated 25 mm aluminum tweeter harmonizes perfectly with the woofer / midrange, a unit that has it all! The aluminum tweeters were specially tuned to the acoustic properties in the vehicle and are equipped with a neodymium magnet. 4 Ohm impedance, 50 W RMS / 80 W music power handling, 90 dB characteristic sound pressure, including high-quality tweeter film capacitor. Manufacture and development Made in Germany. .