http://pastport.jp/user/dsppatech ja-JP 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. 2020-02-11T19:25:45+0900 http://pastport.jp/user/dsppatech/timeline/dsppatech dsppatech http://pastport.jp/user/dsppatech/timeline/dsppatech