DSP531II 3 Inch Neodymium Magnet Ceiling SpeakerMay 29, 2018DSP531II is a neodymium Magnet ceiling speaker which could be customized to be waterproof. There are three installation methods: screw ring, spring clamp and hanging rack which are applicable to DSP53...view
DSP922 4.5 Inch Fireproof Ceiling Speaker with TransformerNovember 15, 2016The DSP922G is a ceiling speaker with a 70v/100v transformer built in, and also is a ceiling speaker with fire dome. The 70v/100v transmission is realized in a high-voltage, low-current mode, which makes longer distance transmission and parallel connectiview
DSP531II 3 Inch Neodymium Magnet Ceiling SpeakerMay 29, 2018DSP531II is a neodymium Magnet ceiling speaker which could be customized to be waterproof. There are three installation methods: screw ring, spring clamp and hanging rack which are applicable to DSP53...view
DSP922 4.5 Inch Fireproof Ceiling Speaker with TransformerNovember 15, 2016The DSP922G is a ceiling speaker with a 70v/100v transformer built in, and also is a ceiling speaker with fire dome. The 70v/100v transmission is realized in a high-voltage, low-current mode, which makes longer distance transmission and parallel connectiview
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