... /FM/card reader /remote control 4)comptitive price ,good quality 5.1 Home Theatre System support DVD player DT-500Specifications:Subwoofer ... :1,Power: 60W2,Speaker unit: 8 inch3,Impedance :4-8Ω4 ... ,Power: 15W * 52, Speaker unit: 3"* 5 + 10" treble3, Impedance :4-8Ω4, Sensitivity:85dB5, Frequency response:120HZ-20KHZ6.Product size ...