SK-45B
Common name: RCA SK-45B
Production Status: Discontinued / Vintage
The SK-45B is a rugged and lightweight omnidirectional dynamic microphone for paging and public address applications. It is ideal for commercial and industrial sound installations. It features an integrated swivel mount, is finished in low gloss grey with a satin chrome grille and includes unterminated 25 foot two-conductor shielded cable. Impedance can be changed from low to high by soldering a connector within the microphone housing.
Electrical Characteristics
Frequency Response
70Hz - 12 kHz
Output Sensitivity
1.58 mV/Pa
Max SPL
Max SPL, THD:
Self Noise (CCIR)
dB
Self Noise (DIN/IEC)
dB-A
Output Impedance
200/15000Ω
Recommended Load
1kΩ
Powering
Supply Current
mA
Alternative Powering
Switchable Options
Pad
Filter/EQ
Physical Characteristics
Connector
Open ends
Connector notes
Available Colours
Low gloss grey.
Weight
453.59 g
Length
139.7 mm
Min diameter width
Max diameter
33.33 mm
Depth
50.8mm
Accessories
Included
25 foot two-conductor shielded cable.
Optional