Sound & Power Technology Industry Limited,Alao Named Guangzhou Shengxin Electronics Co., Ltd. was established in 2009. The registered capital is RMB100 million.Brand "SP Audio" and "SX Audio".

Our compay is professional and experienced on car speaker and car amplifier items.Expecially on powerful car amplifier and comptition car amplifier.

Our products sold to all over the world like :UK,Russian,Italy,Germanny,South American ...

Warmly welcome your cooperation.