Boxed SubwooferImpedance 4 ΩFrequency response 20 - 125 HzSensitivity 95 dBLowest resonance frequency 42 HzMaximum power input 1400 WNominal output power 400 WWoofer material IMPP Composite ConeVoice Coil type Copper, 4-layerVoice Coil bobbin type AluminiumPole Yoke Type 2Terminals Push-typeDimensions 326,6 x 168,5 mmMagnets Ferrite (double)Surround Dual Layer, Fiber Reinforced Elastic Polymer SurroundScrew Terminals 8Weight 6.1 kg kgCut-out Hole 283 mmMounting Depth 151 mmSize 30 cm