Model 2-way coaxial speakers Diameter 165 mm / 6.50″ Power Handling (RMS/max.) 80 / 120 Watts Impedance 4 Ohms Efficiency 91 dB Frequency Response 50 Hz – 20 kHz Tweeter 13 mm / 0.51″ Mylar tweeter Membran HQPP cone with 3D-structure Mounting Ø 142.5 mm / 5.61″ Mounting Depth 63 mm / 2.48″. Incl. Hexagon style protection grill