5-1/4 2-way Indoor & Outdoor Speaker Box Easy to Install (vertical or Horizon install) Weather-Resistant Woofer Magnet: 10 Oz Black Mica P.P injection Cone with Rubber edge Voice Coil: 25mm K.S.V 13mm Dome Tweeter Sensitivity(2.83V/1M): 88dB (3dB) Frequency Response: 70Hz~20KHz Maximum Recommended Amplifier Power: 80W Impedance: 8Ohms W/ Install Bracket With 70V/100V transformer(30W/15W/7.5W)