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Acoustic systems "15ÐС-1" and "25ÐС-2" since 1976 have been producing the Berd radio plant. Speakers are designed to work with high-end amplifier equipment. AS "15AS-1" is two-way, it has 2 low-frequency loudspeakers 6ГД-6 and HF ЗГД-31. The frequency range is 63 ... 20000 Hz. Rated power 15 watts. Dimensions AC 400x240x170 mm. Weight 7.6 kg. The upgraded AS "25AS-2" is three-lane, there are heads in it: 25GD-26, MF 10GD-33 and HF ZGD-31. The frequency range of 40 ... 20000 Hz. Rated power 25 watts. The sizes of the speakers are 485x285x244 mm. Weight 12 kg. On the design of the speakers are similar, except for the absence of the first frequency response switches. AS "15AS-1" since 1977 discontinued. Even the photo could not be found, in the photo similar to her speakers. Since 1977, the plant produced AS "25AS-2" with the name "25AS-302".