Method 3-Way, 3-Speaker, Airtight Type, Bookshelf Type Units Used For low band : 25 cm cone type For Middle Area : 4.8 cm Dome Type For high-pass : 2.5 cm dome type Impedance 8 Ω Playback frequency band 35 Hz to 20 kHz Output sound pressure level 91dB/W/m Max Input 60W Crossover frequency 850 Hz, 5.5 kHz External dimensions Width 350x Height 610x Depth 300 mm Weight 19kg