Nominal power 15W Maximum power 100W Sensitivity (2,83V/1m) 94dB Cone Aluminium Surround - Nom. impedance 4 Ohms DC resistance 3.7 Ohms VC diameter 20mm 013/16" VC height - Former Kapton Layers 2 Wire Copper Inductance - Xmax - Magnet d x h - Magnet weight - Flux density 1.35T Gap height 2.5mm 01/8" Net weight 60g 0.12 lbs