Guangzhou DSPPA Audio Co., Ltd.
Tel: 020-28346138
Fax: 020-81305947

MP9821M M&S Amplifier Auto Switcher


● Switching M/S Amplifiers automatically when one becomes fail comes in
● 4 individual channels with AUTO CHECKING & SWITCHING function
● Manual switching function available
● Status indicator visually

  • Specification
  • Connection


Mic: 2mV, 10kΩ;    Line:0dBV,10kΩ;

Alarm: 0V / +24V(or open), 0V(short circuit) is valid.    


SIRENorRecorded Message:0dBV 


ICinside, 60s.

Frequency response




Power Requirement

AC220 –240V/ 50~60Hz



Gross weight

6.5 kg

Net weight

5.2 kg

MP9821M M&S Amplifier Auto Switcher

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