The DSP903 is a ceiling speaker with fire dome and a 70v/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.
The built-in 4.5” speaker driver is designed of wide frequency response (250-16,000Hz), the multiple terminals 1.5W, 3W & 6W can be applied to different occasions vary in area sizes and background noises; It is made of high-class steel and fixed by stamping, which ensures long-term durability, and will never be out of shape; Equipped with leaded wire case which is hard to burn for fireproofing; Spring clip clamp makes the easy and secure installation possible; Driver surround excellent damping, long life, clear and sonorous sounds.
This fireproof ceiling speaker is an ideal choice for industrial and commercial applications in hotel, school, office and factory where background music and paging is needed.
DSP922S 4.5 Inch Fireproof Ceiling Speaker with TransformerNovember 14, 2016The DSP922S 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 connectiviewDSP922S 4.5 Inch Fireproof Ceiling Speaker with TransformerNovember 15, 2016The DSP922S 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 connectiviewwe will contact you within 24 hours.
Selection and Use of Conference MicrophoneMarch 29, 2019Microphone auditionBecause of the particularity of the conference room, speakers in most cases can't come to the audition (for example, the leader speaks), so they just need to adjust their voice acco...view
OFFICIAL STATEMENT FROM DSPPAApril 7, 2020We hereby declare that we are still running normally and dedicated to providing audiovisual system solution for you.view
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