Subscriber loudspeaker `` Neva ''.
Subscriber loudspeakers.DomesticSince 1952, the subscriber loudspeaker "Neva" has been produced by the Leningrad artel "Radist". The loudspeaker is designed to operate on a 30 volt radio network. The range of reproducible frequencies is 200 ... 4000 Hz. Power input 0.5 W. Volume control is stepwise.
