The Ground Zero Iridium Series of component and coaxial speakers are designed and built to handle high power levels. The Iridium speakers also deliver great sound quality, due to Mylar tweeters, Piezo super tweeters and high fidelity IMPP cones. High quality parts and advanced German design give these speakers outstanding performance. Features Flat component speaker with coated paper cone Resonance free steel basket Rubber surround 0.75” Silkdome-Tweeter 12 dB cable-crossover incl. Tweeterprotection Specification Power handling WRMS – 100 W Power handling W peak – 140 W Impedance – 4 Ohm Diameter of midwoofer or midrange – 165 mm / 6.5″ Mounting diameter of midwoofer or midrange – 142.5 mm / 5.61” Mounting depth of midwoofer or midrange – 44 mm / 1.73” Voice coil of midwoofer or midrange – 25 mm / 1″ Cone of midwoofer or midrange – Coated paper cone Dustcap / Phaseplug of midwoofer or midrange – Cloth Basket of midwoofer or midrange – Steel Magnet of midwoofer or midrange – Ferrit Voice coil of tweeter – 19 mm / 0.75″ Cone of tweeter – Silk Housing of tweeter – Plastic injection Magnet of tweeter – Ferrit and Piezoelectric SPL – 90 dB Frequency response – 50Hz – 20 kHz Ground Zero is one of the most respected brands in car audio. Developed in Germany Ground Zero products are consistently placed in the winners circle and receive praise from reviewers across the globe.
