Shure SM7dB - Detailed Specifications; Sensitivity and Noise Performance; Polarity and Power Requirements; Physical Characteristics

Shure Incorporated
9/12
Sensitivity
Flat response bypass mode 59dBV/Pa[1](1.12mV)
Flat response +18 preamp engaged -41 dBV/Pa[1] (8.91 mV)
Flat response +28 preamp engaged -31 dBV/Pa[1] (28.2 mV)
Hum Pickup
(typical, at 60 Hz, equivalent SPL/mOe)
11dB
Preamplifier Equivalent Input Noise
(A-weighted, typical)
-130 dBV
Polarity
Positive pressure on diaphragm produces positive voltage on pin 2 with respect to pin 3
Power Requirements
(with preamp engaged)
48 V DC [2] phantom power (IEC-61938) 4.5 mA, maximum
Weight
0.837kg(1.875lbs)
Housing
Black enamel aluminum and steel case with black foam windscreen
[1] 1 Pa=94 dB SPL
[2]All specifications measured with a 48 Vdc phantom power supply. The microphone operates at lower
voltages, but with slightly decreased headroom and sensitivity.