DSPPA Network Public Address System has been applied to Hezhou Nationality High School in Guangxi.
DSPPA Got Big Success in 2014 Security ChinaDecember 21, 2016On Oct 28th to 31st, 2014, the 12th China International Exhibition on Public Safety and Security is held in Beijing. This is a grand gathering of Security Industry, Chinese and foreign security compa...view
A Brief Introduction of Public Address AmplifiersJune 28, 2018Public address amplifiers are a device for amplifying the voltage or power of an input signal, consisting of an electron tube or a transistor, a power transformer and other electrical components. It i...view
EN
ar
bn
fr
ms
de
th
id
hi
pt
ru
es
