(1) With halved frequency of 3 channel and gamut system.
(2) Use high quality  loudspeaker that is produce by ourselves
(3) this design is for the karaoke singing, the mid-frequency is
  clear and the bass is powerful.
(4) With specific protect system, standard sling mode.

Specifications:
   Frequency Response 70Hz-10KHz
   Components Bass speaker-8"x1(Y8-2)  Tweeter-3"x2(G75)
   Impedance 8Ω
   Peak Power 150W
   Sensitivity 90dB
   Dimensions(cm) 45x26.5x28