8 2-way Indoor & Outdoor Speaker Box Easy to Install (vertical or Horizon install) Weather-Resistant Woofer Magnet: 30 Oz Black Mica P.P injection Cone with Rubber edge Voice Coil: 35mm K.S.V 20mm Dome Tweeter Sensitivity(2.83V/1M): 90dB (3dB) Frequency Response: 48Hz~20KHz Maximum Recommended Amplifier Power: 140W Impedance: 8Ohms W/ Install Bracket With 70V/100V transformer(50W/25W/12.5W)