Acoustic system "S-90B".

Acoustic systems, passive or active, as well as electro-acoustic units, hearing aids, electric megaphones, intercoms ...Passive speaker systemsThe acoustic system "S-90B" has been produced since 1987 by the Riga PO "Radiotekhnika". The speaker is designed for high-quality reproduction of music and speech programs in stationary household conditions. The "S-90B" is a later model of the "S90", featuring an extended operating frequency range, the introduction of loudspeaker electrical overload indication and a new look. The recommended power of a high-quality household amplifier is 20 ... 90 W. Features: 3-way floor-standing speaker with bass reflex. The range of reproducible frequencies: 25 ... 25000 Hz. Frequency response in the range 100 ... 8000 Hz: ± 4 dB. Sensitivity: 89 dB. Harmonic distortion of the speaker at a sound pressure level of 90 dB at frequencies: 250 ... 1000 Hz: 2%. 1000 - 2000 Hz: 1.5%. 2000 - 6300 Hz: 1%. Resistance: 8 ohms. Limit (passport) power: 90 W. The dimensions of the speaker are 710x360x285 mm. Weight 23 kg. Installed speakers: LF: 75GDN-1-8. Midrange: 20GDS-1-16. HF: 6GDV-6-25.