Subscriber loudspeaker "Orpheus-311".

Subscriber loudspeakers.DomesticSince 1985, the subscriber loudspeaker "Orpheus-311" has been produced by the Leningrad association "Plastpribor". The loudspeaker is designed to reproduce local radio broadcasting transmitted over a radio link. The range of reproducible frequencies is 160 ... 10000 Hz. Input voltage 30 (15) V. Input power 0.25 W. Dimensions AG - 215x48x146. Weight 860 grams. AG was first produced according to GOST, then from 1988 according to TU. Since 1990, AG has been produced under the name "Orpheus AG-311" again in accordance with GOST.