Low Frequency Drive: 5" magnetically shield moneral-filled polypropylene cone with high temperature voice coil and damped rubber surround High Frequency Drive: 3/4" magnetically shield ferrofluld-cooled natural soft dome Frequency Response: 70Hz-20KHz Crossover: 2.6K SPL: 90dB Low Frequency Amplify: 60W High Frequency Amplify: 30W Dimension: 185mm×225mm×280mm Weight: 5.5Kg/PCS