Subscriber loudspeaker Zenit-305.
Subscriber loudspeakers.DomesticSince 1987, the subscriber loudspeaker "Zenit-305" has been produced by the Gagarin OJSC Dinamik. The subscriber loudspeaker "Zenit-305" in accordance with GOST 5961-89 is designed to reproduce the transmissions of the LF channel of the wire broadcasting network in closed rooms. The voltage in the radio network is 30 V. The frequency range is 160 ... 10000 Hz. Average sound pressure at nominal voltage 0.23 Pa. AG was produced after the 2000s, presumably until 2010.
