SR71
Common name: Earthworks SR71
Production Status: Discontinued / Vintage
The SR71 is a cardioid microphone intended for live sound, but is equally useful for recording. Its pickup pattern is unusual. The entire front hemisphere is open and natural, and the sonic character doesn’t change very much as you move off-axis. Even at 90° it is flatter than most mics are on-axis. Its bass response is flat at 15 cm. At ambient distances the bass response elbows down at 400 Hz and is down 5.5 dB at 100 Hz. This is an advantage for many applications.
Electrical Characteristics
Frequency Response
50Hz - 20 kHz
Output Sensitivity
10 mV/Pa
Max SPL
145
Max SPL, THD:
1
Self Noise (CCIR)
dB
Self Noise (DIN/IEC)
22 dB-A
Output Impedance
50Ω
Recommended Load
10kΩ
Powering
Phantom 48 only
Supply Current
10 mA
Alternative Powering
24V with reduced headroom
Switchable Options
Pad
Filter/EQ
Physical Characteristics
Connector
XLR-3M
Connector notes
Available Colours
Stealth black
Weight
225 g
Length
236 mm
Min diameter width
22 mm
Max diameter
12 mm
Depth
Accessories
Included
Clip, foam windscreen, Earthworks tube
Optional
Fancy windscreen