Summary: Type: coaxial speaker; The number of bands: 3; Power: 40 W (nominal), 160 W (maximum); Sensitivity: 91 dB; Frequency range: 35 - 21000 Hz; Additional information: Butyl rubber suspension of the diffuser to improve the durability and improving sound quality. As diffuser holder of stainless steel. Impedance: 4 Ohms.; ...