Guangzhou DSPPA Audio Co., Ltd. (DSPPA), founded in 1988, is a global famous manufacturer of professional audio products. DSPPA is a specialist for developing and producing the Public Address (PA) devices, Digital Conference System, Home Audio System and is famous for its high quality products and services. DSPPA has been the supplier of 2008 Beijing Olympics, the supplier of Expo 2010 Shanghai China, and the supplier of Sochi Winter Olympics 2014 Russia. Guangzhou DSPPA is the chief editorial company of the Technical Code for Public Address System Engineering,which is the first Chinese standard for PA system engineering, filled up the technical vacancy in the PA industry.