Since 1965, the subscriber loudspeaker "Surprise" has been producing the Novosibirsk plant of low-voltage equipment (NZNVA). ,86e6f450b8cc469628ba70bf2947b049The model became the most popular AG produced by NZNVA. ,86e6f450b8cc469628ba70bf2947b049AG "Surprise" has been produced for 17 years in different design options. ,86e6f450b8cc469628ba70bf2947b049The differences were mainly related to the decorative grille. ,86e6f450b8cc469628ba70bf2947b049In 1972, AG "Surprise" was awarded the highest quality mark of the USSR and a separate GOST 5.470-72. ,86e6f450b8cc469628ba70bf2947b049Sound frequency range 150 ... 5000 Hz. ,86e6f450b8cc469628ba70bf2947b049Power input 0.15 W. ,86e6f450b8cc469628ba70bf2947b049The original dimensions of the AG "Surprise" were 250x155x70 mm, but in the second half of the 70s they were reduced to 245x150x60 mm. ,86e6f450b8cc469628ba70bf2947b049Weight decreased from 1.3 to 1.1 kg. ,86e6f450b8cc469628ba70bf2947b049Since 1981, the plant began production of AG "Surprise-301", which was not according to GOST, but according to TU for operation in a radio line with a voltage of 30 or 15 volts and had slightly different frequency characteristics, 160 ... 6300 Hz.,86e6f450b8cc469628ba70bf2947b049,null,ru,null,null,null,null