Front Speaker: Center Speaker: Surround Speaker: Subwoofer: 2pcs 1pc0 2pcs 1pc Power Handling: 25w 25w 25w 60W Freq. Response: 180Hz-20KHz 230Hz-20KHz 230Hz-20KHz 40Hz-300Hz Impedance: 4 Ω 4 Ω 4 Ω 6 Ω Sensitivity: 86?dB / M / W 86?dB / M / W 86?dB / M / W 89?dB / M / W Way Unit: 2way-3unit 2way-3unit 2way-3unit .- Driver: 1'+3'+3' 1'+3'+3' 1'+3'+3' 8' Cabinet Size 1130x145x45 145x460x70 145x560x70 400x370x80 Cabinet Material 15-18 mm MDF 15-18 mm MDF 15-18mm MDF 15-18mm MDF Finish Painting Painting Painting Painting Carton Size(outer) 1187x378x229 458x240x420 QTY/ (20' /40' /40' HQ) 200 sets / 400 sets / 480sets