BK-10A
Common name: RCA BK-10A
Production Status: Discontinued / Vintage
The BK-10A is a hypercardioid ribbon microphone for televisioon amnd radio broadcast, recording an public address applications. The directivity is achieved by using two unidirectional elements with a thin corrugated metal ribbon clamped under light tension. One side of the ribbon is open to the air and the other open into an acoustical lybirinth which has aphase shift openings. The labirinth of each element features a shielded matching transformer and filter to protect the ribbon from wind and noise blasts. The BK-10A has an integrated 18 inch cable designed to attenuate stand noise.
Electrical Characteristics
Frequency Response
80Hz - 15 kHz
Output Sensitivity
1.58 mV/Pa
Max SPL
Max SPL, THD:
Self Noise (CCIR)
dB
Self Noise (DIN/IEC)
dB-A
Output Impedance
40/200Ω
Recommended Load
1kΩ
Powering
Supply Current
mA
Alternative Powering
Switchable Options
Pad
Filter/EQ
Physical Characteristics
Connector
Open ends
Connector notes
Available Colours
Black and low-gloss grey enamel
Weight
1133.8 g
Length
266.7 mm
Min diameter width
44.45 mm
Max diameter
73 mm
Depth
Accessories
Included
Optional
Microphone boom and stand.