Acoustic system "Radiotehnika S-20B".
Acoustic systems, passive or active, as well as electro-acoustic units, hearing aids, electric megaphones, intercoms ...Passive speaker systemsAcoustic system "Radiotehnika S-20B" presumably from 1988 by the Riga PO "Radiotekhnika". Two-way bookshelf speaker with bass reflex. The frequency range is 63 ... 20,000 Hz. Sensitivity 86 dB. Frequency response ± 6 dB. Harmonic distortion in the frequency range: 250 - 1000 Hz: 2.5%. 1000 - 2000 Hz: 2.5%. 2000 - 6300 Hz: 1.5%. Resistance: 8 ohms. Recommended amplifier power: 20 - 35 W. Passport power: 20 watts. Speakers used: LF / MF: 25 GDN-1-8-80. HF: 6 GDV-1-16. Filter section frequency: 5000 Hz. The dimensions of the speaker are 294x170x120 mm. Weight 2.6 kg.
