Cheapest Karaoke speaker cs-350 Type:                                    2 - way full range design Frequency response:       50HZ-20KHZ Sensitivity :                          98dB Nominal Impedance:       8 ohms Power rating:                      RMS 150W   PEAK 300W Drivers: High Frequency (neodymium magnet):  -  2 x  3 (inch) paper corn                                                                                                             - 10 inch 100 magnetic steel                                                                          -  35 core KSV voice coil -  Steel salver frame