Acoustic system '' 25 AC-309 ''.
Acoustic systems, passive or active, as well as electro-acoustic units, hearing aids, electric megaphones, intercoms ...Passive speaker systemsThe acoustic system "25AS-309" has been produced since 1982 by the Berdsky radio plant. 3-way closed-type loudspeaker '' 25 AC-309 '' is designed to work together with household high-quality amplifying radio equipment. The rated power of the speaker is 25 watts. Average sound pressure 1.2 Pa. The nominal electrical resistance is 4 ohms. The range of reproducible frequencies is 40 ... 20,000 Hz. Dimensions of one speaker - 480x285x261 mm. Speaker weight - 13 kg. The price of one speaker is 110 rubles. Since autumn 1984 the plant has been producing a similar acoustic system of the 25AS-109 type, renamed in accordance with GOST 23262-83.
