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Subscriber loudspeakers "Cheremshina-306" and "Cheremshina-307" since 1979 produced the Lviv Telegraph Equipment Plant. Loudspeakers are designed to listen to programs transmitted over radio networks with a voltage of 30 V. AG can be placed on a table or suspended from a wall. The front grille of the Cheremshiny-306 is made of impact-resistant polystyrene, and the front grille of the Cheremshiny-306 is made of perforated aluminum sheet. The speakers of both speakers consist of a dynamic head 0.5GD-42. Frequency range - 160 ... 6300 Hz; frequency response unevenness in sound pressure - 15 dB; average sound pressure - 0.23 Pa; the volume control range is 32 dB; the dimensions of the Cheremshina-306 loudspeaker are 190x194x78 mm, the Cheremshina-307 speaker is 166x238x86 mm; the mass of Cheremshina-306 AG - 1.26 kg, Cheremshina-307 - 1.1 kg; the price of any AG is 5 rubles.