DSP227EN 24W EN54 Fireproof Wall Mount SpeakerMay 21, 2021view
DSP5311EN 6.5 Inch EN54 Fireproof Surface Mount Ceiling SpeakerNovember 6, 2020This product is an EN54 certified surface mount ceiling speaker with a 100V transformer. The built-in 6.5” speaker driver is designed with a wide frequency range of 200-16,000Hz, and several terminal...view
DSP3254EN 10W EN54 Fireproof Ceiling SpeakerNovember 15, 2016The DSP3254EN is a ceiling speaker designed for voice evacuation systems, so it also called as en54 ceiling speaker, which comply with EN54-24 requirements. It has a 100v transformer built in.viewwe will contact you within 24 hours.
The Convenience and Speed of Paperless Conference System is a Further BreakthroughSeptember 3, 2020The conference system must adapt to and be compatible with the rapid development of information technology, the bewildering number of software products, and intelligent decision-making proposed due to...view
The Difference between Digital Power Amplifier and Analog Power AmplifierOctober 29, 2020Because the digital power amplifier works completely different from the traditional analog power amplifier, it overcomes some inherent shortcomings of the analog power amplifier and has some unique ch...view
EN
ar
bn
fr
ms
de
th
id
hi
pt
ru
es
