Production: 1961 - unknown
Beomic BM5 was a monophonic/stereophonic ribbon microphone. It was shock- and blast-proof and included a ball swivel mechanism to tilt to any position.
Response Frequency characteristics:
“M” (Music) Position: from 20 to 13,000 c/s +/- 3 dB
“T” (Close talk) Position (8-16″): rolled off below 1000 c/s at 100 c/s; +/- 10 dB
Open Circuit Voltage Level: - 87 dB. OdB =1 Volt per Microbar
RTMA Microphone Rating Gm: (sensitivity): - 159 dB. RTMA Standard SE - 105
Hum Sensitivity (RTMA) Gh -153 dB
Output Impedance: Nominal at 1000 c/s: 150 Ohms
Rating Impedance: 150 Ohms
Cable: Supplied with 6m 4-core over all screened
Transformer, type 9398 - JS for matching BM5 to a high impedance input of a stereo amplifier available on special request. Mounting: Conical Friction Socket to 5/8″ x 27 thread
(Taken from BM Specifications’ Sheet)
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