Detailed Product Description 1. SPECIFICATION 1) Driver unit: 4"*1+ 2.5"*2(magnetically shielded) 2) Power output: 8W*1+3W*2 3)Impedance: 4Ohm 4)Frequency Response: Subwoofer: 60Hz-200Hz, Satellites: 150Hz-20KHz 5)S/N: Subwoofer :>65d ...