max power output 250 watt impedance 8 ohms sentivity 89 Db frequency response 50Hz- 20Hz total dimensions 10.7" x 3.5" (diameter xd depth) cutout diameter 9.3" mounting depth 3.0" speaker weight 4.57lbs weight : 9.5Ibs power 100/240V (12V DC power supply) size 8"