80 W Max Kevlar ? 5.7 Cm Kevlar Brand FIber Composite Cone Full - Range Speaker ? Butyl Rubber Surround For Smoother Response ? Large - Diameter Voice Coil With Neodynium Magnet ? 20 Watts Nominal Power Handling ? 90 - 30.000 hz, 80 dB, 83 x 82 x 114 mm