Subscriber loudspeaker `` Volna ''.
Subscriber loudspeakers.DomesticThe "Volna" subscriber loudspeaker has been produced since 1951. The manufacturer is not installed. The standard subscriber loudspeaker class 4 "Volna" is designed for a line voltage of 30 volts. Input impedance 5000 Ohm. Power consumption 45 mW. The range of reproducible sound frequencies is 150 ... 5000 Hz. The unevenness of the frequency response is 15 dB. Average sound pressure 2.5 bar. AG weight - 1.3 kg.
