S-90D 1990
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Acoustic systems "35АС-012" (Radiotehnika S-90D and Radiotehnika S-100D) since 1990 have produced the Riga Radio Factory. Popov. Appointment and scope: for high-quality reproduction of musical and speech programs. Product specifications: 3-way floor speaker with bass reflex. Frequency range: 25. 25000 Hz. Irregularity of frequency response in the range of 100 - 8000 Hz: ± 4 dB. Sensitivity: 89 dB. Resistance: 8 ohms. Passport power: 90 and 100 watts. Short-term power: 600 watts. AC dimensions - 710x360x285 mm. Weight 23 kg.
Documentation:
Information from collection of Valery Khartchenko