DSP3154EN 10W EN54 Fireproof Ceiling SpeakerNovember 15, 2016The DSP3154EN 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.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.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.viewwe will contact you within 24 hours.
Classification of PA System SchoolAugust 6, 2018PA system school is a kind of low-power FM broadcasting. Many colleges and universities, middle schools and even primary schools have adopted campus FM broadcasting to broadcast English programs or ot...view
National Standard GB50526August 22, 2018Technical Code for Public Address System Engineering (National Standard GB50526), mainly drafted and translated by DSPPA is officially published today! This Standard is the first national standard in...view
EN
ar
bn
fr
ms
de
th
id
hi
pt
ru
es
