Subscriber loudspeaker Zenit-301.
Subscriber loudspeakers.DomesticSince 1978, the subscriber loudspeaker "Zenit-301" has been produced by the Gagarin plant "Dinamik". Zenit-301 is a standard subscriber loudspeaker for radio transmission lines with a voltage of 30 volts. The range of reproducible sound frequencies in terms of sound pressure is 160 ... 6300 Hz. The average sound pressure in the band of reproducible sound frequencies is 0.25 Pa. The price of the loudspeaker is 5 rubles.
