Subscriber loudspeaker `` Donbass-305 ''.
Subscriber loudspeakers.DomesticThe subscriber loudspeaker "Donbass-305" has been produced since the 1st quarter of 1982 by the Makeevka plant of electrical household products "Impulse". The Donbass-305 model is a standard subscriber loudspeaker designed to operate in radio transmission lines with a voltage of 30 V. The range of reproducible sound frequencies is 160 ... 6300 Hz. The average sound pressure in the band of reproducible sound frequencies is 0.25 Pa.
