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
DSP3354EN 10W EN54 Fireproof Ceiling SpeakerNovember 15, 2016he on-wall loudspeaker DSP3354EN is specifically designed to meet the requirements of EN54-24 that is part of a series of norms concerning voice alarm evacuation in case of fire, so it also called as en54 ceiling speaker.view
DSP3154EN 10W EN54 Fireproof Ceiling SpeakerNovember 15, 2016This product is a 10W fireproof ceiling speaker with aluminum mesh and fireproof cover, rust-proof and durable. The speaker features a reinforced adjustable clip for easy installation and a safety ste...viewwe will contact you within 24 hours.
Precautions for Purchasing a Wireless Conference SystemSeptember 23, 2021Wireless conference systems have gradually been familiar with the public, ranging from national summits to ordinary offices, and more and more companies purchase wireless conference systems. Below we ...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
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