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Ala-Tau-301 subscriber loudspeaker has been produced since 1971 by the Alma-Ata Kyzyl Tu software. Standard subscriber loudspeaker 3 classes. The input voltage is 30 V. The power consumption is 0.15 watts. The average sound pressure of 0.25 Pa. The frequency range of sound pressure 160 ... 5000 Hz. Irregularity of the frequency response - 15 dB. Input impedance is 3600 ohms. SOI at a frequency of 400 Hz - 8%. AH dimensions are 200x198x75 mm. Weight 900 gr. Price 5 rubles.