Type: Monopole Surround Speaker, Design: 2Way Vented, Driver Size : HF 1" dome tweeter, MF 1 x 4", Amplifier Power: 60 -100 watt, Nominal Impedance: 8Ω, Sensitivity : 84dB, Frequency Response : 80Hz-20kHz , Dimensions (WxHxD):216mm x 175mm x 160mm,Weight: 3.2kg