Acoustic system '' 20 AS-1 '' (15AS-407).
Acoustic systems, passive or active, as well as electro-acoustic units, hearing aids, electric megaphones, intercoms ...Passive speaker systemsSince 1975 the acoustic system "20AS-1" has been produced by the Lvov PO named after Lenin. The speakers were included in the sets of amplifiers "Trembita-002S" and "Jupiter-Quadro". Designed for use with high quality hardware. It is equipped with four dynamic heads 4GD-43 and two ZGD-31, which are installed on a screen board, there is also a filter capacitor. The screen board is attached to the body, and there is a decorative grill in front of it. There is an SSh-5 connector for connecting a cable on the back wall of the Ac case. Outside, the body is finished with precious woods and varnished. Rated power 20 W; operating frequency range 63 ... 18000 Hz; electrical resistance 16 Ohm; average standard sound pressure 0.25 Pa; uneven frequency response ± 6 dB: at frequencies of 125 ... 400 Hz - 5%; at frequencies above 630 Hz - 3%; speaker dimensions - 444x312x258 mm; weight 10 kg. The price is 90 rubles. Since 1979, according to the new GOST-y AS - "20AS-1" was referred to as "15AS-407".
