Component: Active Subwoofer, Double Passive Radiator ReflexSpeaker Size: 200mm, 8 inchaPassive Radiator Size mm (in.): 200 (8) x 2Power handling: 140W peakImpedance: 4 OhmaFrequency Response: 32 400HzSensitivity: 92dB/SPLMagnet: High density flux ferriteCone: Water-repellent pressed paperWeight: 7,80kg