Summary: Type: coaxial speaker; The number of bands: 3; Power: 50 W (nominal)100 watts (maximum); Sensitivity: 90 dB; Frequency range: 60 - 20,000 Hz; Additional information: Impedance Of 4 Ohms. Ferrite magnet 567, Rubber surround diffuser with increased strength. Protective cover of the magnetic system. Decorative lattice.; ...