DSP204H 30W Explosion-proof Horn SpeakerNovember 15, 2016Description: DSP 204H features superior fireproof performance and sufficient mechanical strength. It is with high sensitivity and electricity/sound efficiency. This product is used for high fire resis...view
DSP154H 15W Outdoor Waterproof Horn SpeakerNovember 15, 2016Description:DSP154H is a waterproof horn speaker with built in 70v/100v transformer. The 70v/100v transmission is realized in a high-voltage, low-current mode, which makes longer distance transmission...view
DSP3028A 1000W Sound Master Series Huge Horn SpeakerNovember 15, 2016The DSP3028A is an outdoor speaker with a 100v transformer built in. The 70v/100v transmission is realized in a high-voltage, low-current mode, which makes longer distance transmission and parallel connection of multiple loudspeakers possible.viewwe will contact you within 24 hours.
DSPPA PA System Sounding in AfricaNovember 29, 2016DSPPA network PA system applied in the construction of Ethiopia - Djibouti railway section has entered into the acceptance period. It’s a historical moment for DSPPA.Site ConstructionThe railway proj...view
The discriminative methods of positive and negative poles of announcement speakerJune 22, 2018The phase of an announcement speaker is the connection of the positive and negative poles of the loudspeaker when used in series and parallel. When more than two speakers are used, the consistency of ...view
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