Model 2-way coaxial speakers Diameter 100 mm / 3.94″ Power Handling (RMS/max.) 60 / 100 Watts Impedance 4 Ohms Efficiency 89 dB Frequency Response 70 Hz – 20 kHz Tweeter 13 mm / 0.51″ Mylar tweeter Membran HQPP cone with 3D-structure Mounting Ø 93 mm / 3.66″. Incl. hexagon style protection grill