QS Series PA Speaker

QS Series PA Speaker

The Beta Three® QS series is a series of two-way PA speakers elegantly designed and manufactured for music playback and sound reinforcement. Not only is the QS series remarkably compact and easy to set up and operate, but its unique design also allows it to have customizable colors in grilles and enclosures to have the speakers integrate with whatever backgrounds users desire.

QS400 4" Public Address Speaker
QS400 4" Public Address Speaker
QS400 4" Public Address Speaker
QS400 4" Public Address Speaker

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. 
 

Features

  • Two 1”dome tweeter
  • 4”paper cone low frequency driver
  • High intensity injection moulded cabinet
  • Dispersion 90° x 90°
  • Frequency response 120Hz-20kHz(-3dB)
  • Sensitivity 88dB,Max SPL108dB(peak)
  • Constant max power 25W
  • 2xM5 hanging point
  • Customizable grill and cabinet color
  • Apperance elegant and fashionable
  • Built-in mounting bracket

Specifications

Acoustical specifications
Frequency Response(-3db):
120Hz-20kHz
Max SPL @ 1m:
102dB/108dB(PEAK)
Dispersion (H x V):
90° x 90°
Transducers
Compression driver:
2 x 1" HF
Woofer:
1 x 4" LF
Input/Output section
Input Connectors:
Wire clamp
Sensitivity (1W @ 1m):
88dB
Processor section
Crossover frequencies:
6.3kHz
Power section
Total Power:
25W(RMS); 50W(MUSIC); 100W(PEAK);
Nominal Impedance (Ohm):
Voltage range:
120V/100V/70V
Physical specifications
Cabinet/Case Material:
Polypropylene injection moulding
Hardware:
2 x M5 Bracket lifting point
Grille:
Cabinet Exterior with/without polyurethane spraying treatment (depends on colors)Grill with cloth
Color:
Black
Size
Dimension (W x D x H):
238 x 135 x 142mm / (9.4 x 5.3 x 5.6in)
Package Dimensions (W x D x H):
372 x 192 x 310mm / (14.6 x 7.6 x 12.2in)
Weight
Net Weight:
1.7 kg / 3.7 lb
Gross Weight:
4 kg / 8.8 lb

QS400 Application

    QS400 Installation

      QS400 Parts

        QS400 Cases

          QS400 Collocation

            Videos

              Downloads

              FilenameVersionLanguageSizeUpdated
              QS400β3 QS400 Datasheet 1.0QS400  200KB 2024-03-29 00:26:08
              β3_QS400_Plastic_Speaker_Chinese_Manualβ3_QS400_Plastic_Speaker_Chinese_Manual 1β3_QS400_Plastic_Speaker_Chinese_Manual  729.16KB 2018-07-12 02:25:39
              β3_QS400_Plastic_Speaker_English_Manualβ3_QS400_Plastic_Speaker_English_Manual 1β3_QS400_Plastic_Speaker_English_Manual  611.27KB 2018-07-12 02:25:39

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