4" 2 Way 2 Speaker System (400-2034A) Specifications Faxback Doc. # 16532 Frequency Response:...............................120 Hz - 20 KHz +/- 10 db System Resonance:....................................................120 Hz Crossover Type:.............................................L-C Cut Network Crossover Frequencies:..............................................2.5 KHz Impedance:...........................................................8 ohms Power capacity:....................................................40 W Max Sound Pressure Level:........................................86 dB +/- 2 dB Type:............................................................Book Shelf Height:.............................................................180 m/m Material and Thickness:....................................Aluminum Diecast Grille Color:........................................................Silver Type:..................................................................Cone Diameter:................................................................4" Suspension:.............................................Up rolled free edge Cone Material:........................................................Paper Voice Coil dia:..........................................................1" Voice Coil Impedance:......................................8 ohms at 350 Hz Magnet Type:.......................................................70 x .15 Magnet Weight:................................................22.8 g (8 oz) Sensitivity:...................................86 dB spl for 1 W at 1 meter