- Nominal power: 400 W - Maximum power: 800 W - Sensitivity (2.83V/1m): 87.5 dB - Nom. impedance: 4+4 Ω - Cone: W - Surround: Butyl - DC resistance: 3.1+3.1 Ω - VC diameter: 4 23/32" (120 mm) - Former: Glass Fiber - Layers: 2 - Wire: CCAW