Acoustic system '' 15 AS-4 ''.

Acoustic systems, passive or active, as well as electro-acoustic units, hearing aids, electric megaphones, intercoms ...Passive speaker systemsThe acoustic system "15AS-4" has been produced since the beginning of 1976 by the Berdsky radio plant. These acoustic systems, along with other similar ones, were completed with the "Vega-104M-stereo", "Vega-108-stereo" electrophones and the "Vega-117-stereo" combined device. AC - two-way. Applied loudspeakers 25GD-26 and 3GD-31. Rated input power 15 W, maximum 25 W. The nominal range of reproducible frequencies is 63 ... 20,000 Hz. Speaker dimensions - 420x250x190 mm. Weight - 8 kg. Presumably since 1979 and 1983, the AUs were produced with the names "15AS-404" and "15AS-204".