Funcionando perfeitamente Nominal Impedance: 8 ohmsRecommended Amplifiers: 15-150 wattsFrequency Response: 25hz-30khzSensitivity: 88.5db linear for 1 watt at 1 metreDimensions: 190 x 965 x 240mm (Width x Height x Depth)Weight: 16kg / 35.2lbs