B&O bm3

B&O Mikrofon bm3 1955 - 66 designet af Erik Rørbæk Madsen
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B&O Mikrofon bm3 1955 - 66 designet af Erik Rørbæk Madsen
|| Forside ||

B&O Mikrofon bm3 1955 - 66 designet af Erik Rørbæk Madsen
|| Forside ||

BeoMic BM3 Microphone Product Specifications
Specifications: Dimensions 195mm high, 30mm diameter
Impedance 50 ohms balanced
Response M position: 20-11000 c/s +/- 2,5 dB
T position: 10 dB lower at 100 c/s
Sensitivity M position, 50 ohms: 88 dB below 1V/µbar
T position: 4 dB lower

Response Frequency Characteristic:
M (Music) Position: From 20 till 11,000 c/s +/- 3 dB
T (Close Talk) Position (8-16") Rolled off below 100 c/s: 12 dB
RTMA Microphone Rating GM (sensitivity): -158dB; Hum Sensitivity (RTMA) GH: -145 dB. RTMA Standard SE - 105. BM 3. Open Circuit Voltage Level: -88 dB, OdB = 1 Volt per Microbar
Output Impedance: Nominal 80 ohms
Rating Impedance: 150 ohms
BM 4. Open Circuit Voltage Level:
"L"-Position: -88 dB
"M—Position: -81dB
"H"-Position: -60 dB
OdB = 1 Volt per Microbar
Output Impedance:
"L"-Position:
Nominal at 1000 c/s; 100 ohms
Rating Impedance: 150 ohms
"M"-Position:
Nominal at 1000 c/s; 450 ohms
"H" position:
Nominal at 1000 c/s; 60 k ohms
Rating impedance: 40 k ohms
Size: 7,75" x 1 3/16"
Weight: 15 ozs approx.
Cable: supplied with 20 feet twin cond. shld.
Transformer type: 8016-JS for matching BM3 to a high impedance amplifier input available on special order
mounting: Bayonette detach to 5/8" x 27 thread