Active speaker system `` 25 АС-311 ''.
Acoustic systems, passive or active, as well as electro-acoustic units, hearing aids, electric megaphones, intercoms ...Passive speaker systemsSince 1982, the active acoustic system "25AS-311" has been produced by the Punane-RET Tallinn plant. Designed for high-quality sound reproduction as part of the Estonia-009C stereophonic radio. The AAC has a power amplifier, a filter that divides the frequency spectrum into three bands, each of which is reproduced by different loudspeakers. There is an autonomous power supply unit. In the new AAS, the grilles were covered with paralon on top. The range of reproducible frequencies is 40 ... 18000 Hz. Uneven frequency response 14 dB. The rated output power of the built-in amplifier is 25 W. Speakers used: LF: 25GD-26B, MF: 15GD-11A, HF: 3GD-31. Amplifier harmonic distortion 0.2%. Power consumption from the network is 65 W. The dimensions of the speaker are 540x315x330 mm. Weight 19 kg.
