Acoustic system `` 50 AC-5 '' (Radiotehnika).

Acoustic systems, passive or active, as well as electro-acoustic units, hearing aids, electric megaphones, intercoms ...Passive speaker systemsThe acoustic system "50AS-5" (Radiotehnika) has been produced since 1974 by the Riga PO "Radiotekhnika". The speaker is designed for high-quality sounding of small concert halls. In the lower part of the loudspeaker, the woofers are located asymmetrically above each other to improve the frequency response. Bass reflex ports are brought out on both sides. At the top of the midrange, the speakers are stacked on top of each other. The tweeter is located at the top center. On the front panel there are knobs for the mid and high frequencies, which have three positions: "Min", "Normal" and "Max". The upper part is covered by a plastic cover that covers the level controls, midrange and treble speakers. The speakers use the following speakers: LF (2 pcs.): 30 GD-1 (75 GDN-1-4), MF (2): 15 GD-11 (20 GDS-4-8) and HF (1): 10 GD -35 (10 GDV-2-16). Three-way floor-standing speaker with bass reflex. The range of reproducible frequencies: 20 ... 20,000 Hz. Frequency response unevenness: 20 dB. Harmonic distortion at 1000 Hz: 2.5%. Rated electrical resistance: 4 ohms. Rated input power: 50 W, maximum 100 W. Average standard sound pressure: 0.1 Pa. The internal volume of the speaker is 120 liters. Speaker dimensions - 900x472x290 mm. Weight is not more than 42 kg.