Sound column (loudspeaker) '' 10 GDN-1 ''.
Acoustic systems, passive or active, as well as electro-acoustic units, hearing aids, electric megaphones, intercoms ...Broadcast loudspeakersSince 1973, the sound column (loudspeaker) "10GDN-1" has been produced by the Irkutsk Radio Receiver Plant named after V.I. 50th anniversary of the USSR. The loudspeaker is designed for sounding industrial and public buildings, railway stations, landside areas, exhibitions, etc., as well as squares.
