speaker type: 2-way, bass reflex suggested amplifier: 20÷80 Watt impedance: 4÷8 Ohm sensitivity (2.83 V/1m): 90 dB frequency response: 60÷22000 Hz crossover frequency: 4500 Hz crossover slope: 12 / 12 dB/oct units: shielded magnet woofer diameter: 2 x 90 mm tweeter dome diameter: 20 mm dimensions: 380 x 110 x 190 mm weight: 3.5 Kg design: real wood, cherry colour