DSS1417 Active Directional Speaker SystemJuly 11, 2022DSS1417 is a directional active speaker system. As the ultrasonic wavelength is only a few millimeters, much smaller than that of the speaker, it can produce nearly linear narrow beam. Ultrasonic wave...view
DSS1520A Active Directional Speaker SystemJuly 13, 2022view
DSS1419 Active Directional Speaker SystemJuly 11, 2022DSS1419 is a directional active speaker system. As the ultrasonic wavelength is only a few millimeters, much smaller than that of the speaker, it can produce nearly linear narrow beam. Ultrasonic wave...viewwe will contact you within 24 hours.
Opening Ceremony of DSPPA Audio MuseumNovember 29, 2016Opening Ceremony of DSPPA Audio Museum -The First Audio History Museum in ChinaMay 28, 2016, DSPPA successfully held the opening ceremony for the audio museum and science popularization education base...view
DSPPA Network Public Address System in full digital transmission in ShenyangNovember 29, 2016In July, after being constructed for 10 months, the renewal project of terminal T1 in Shenyang Taoxian International airport is completed and opens officially. At this time, the broadcast system in te...view
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