Subscriber loudspeaker "Pioneer".
Subscriber loudspeakers.DomesticSince 1929, the Pioneer subscriber loudspeaker has been produced by the Leningrad Electromechanical Plant named after Kulakov. The design of the Pioneer subscriber loudspeaker is similar to the Record loudspeaker. The loudspeaker design is simple. A fiber or paper diffuser is fixed at the base of the case and is combined with an electromagnetic mechanism. A mechanical volume control is installed at the back of the loudspeaker housing.
