Subscriber loudspeaker `` Donbass-301 ''.
Subscriber loudspeakers.DomesticSince 1977, the subscriber loudspeaker "Donbass-301" has been producing the Makeyevka plant of electrical household goods "Impulse". "Donbass-301" is a standard subscriber loudspeaker for radio lines, with a voltage of 30 V. The range of reproducible sound frequencies is 160 ... 5000 Hz. Uneven frequency response is not more than 15 dB. The average sound pressure in the reproducible frequency band is 0.25 Pa. Rated input power 150 mW. Input impedance 3.6 kOhm. Loudspeaker dimensions 260x150x74 mm. Weight 1.1 kg. To increase the range of products, the plant until 1980 produced loudspeakers Donbass, Donbass-301, as well as all subsequent ones in parallel.
