QS400 - 4'' Public Address Speaker

QS400 is a 4” two way full range speaker system with wide dispersion. Its sound is nature and clear while the cabinet is handy, compact and the appearance is elegant and fashionable. It’s applicable in small performing stages, KTV, background music,etc. 


  • Two 1”dome tweeter
  • 4”paper cone low frequency driver
  • High intensity injection moulded cabinet
  • Dispersion 100°x100°
  • Frequency response 80Hz-20K Hz(-3dB)
  • Sensitivity 87dB,Max SPL108dB(peak)
  • Constant max power 50W
  • 2xM5 hanging point
  • Customizable grill and cabinet color
  • Apperance elegant and fashionable


QS400 Application

QS400 Installation

QS400 Parts

QS400 Cases

QS400 Collocation



Filename Version Language Size Updated
β3_QS400_Plastic_Speaker_Chinese_Manual β3_QS400_Plastic_Speaker_Chinese_Manual 1 β3_QS400_Plastic_Speaker_Chinese_Manual  729.16KB 2018-07-12 02:25:39
β3_QS400_Plastic_Speaker_English_Manual β3_QS400_Plastic_Speaker_English_Manual 1 β3_QS400_Plastic_Speaker_English_Manual  611.27KB 2018-07-12 02:25:39