Concert dynamic microphone "MD-87A" has been produced possibly since 1987 by the Tula plant "Oktava".
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Unilaterally directional (supercardioid) with elastic suspension of the capsule and built-in windscreen provides effective suppression of acoustic, wind and mechanical interference, including noise arising from the contact of the performer's hands with the microphone body.
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In the sound field of distant sources, the frequency characteristics have a roll-off to low frequencies, which is leveled in the working position with respect to the performer due to the near-field effect, which, together with the directional spatial characteristic, makes it possible to work at significant volume levels without the danger of an acoustic tie.
,86e6f450b8cc469628ba70bf2947b049
The microphone has a double-domed diaphragm to provide sufficient sensitivity in the low frequency range.
,86e6f450b8cc469628ba70bf2947b049
Frequency range 40 ... 16000 Hz.
,86e6f450b8cc469628ba70bf2947b049
Sensitivity - 1.3 ... 2.6 mV / Pa.
,86e6f450b8cc469628ba70bf2947b049
Output impedance 250 ± 50 ohms.
,86e6f450b8cc469628ba70bf2947b049
Noise level 15 dB.
,86e6f450b8cc469628ba70bf2947b049
Temperature range -20 / 50 C. Humidity 93%.
,86e6f450b8cc469628ba70bf2947b049
Dimensions 50 x 197 mm.
,86e6f450b8cc469628ba70bf2947b049
Weight 300 g.
,86e6f450b8cc469628ba70bf2947b049
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