Subscriber loudspeaker "Sphere-301".
Subscriber loudspeakers.DomesticSince 1979, the subscriber loudspeaker "Sphere-301" has been produced by the Moscow Plant of Electromechanisms. Spherical subscriber loudspeaker "Sphere-301" with Olympic (or other) symbols, designed to receive radio programs transmitted over local wire radio broadcasting networks. The supplied voltage is 30 (15) volts. The supplied power is 150 mW. The range of reproducible sound frequencies is 160 ... 6200 Hz. AG weight - 1 kg.
