SM57 UNIDIRECTIONAL CARDIOID DYNAMIC MICROPHONE

sm57.jpg (6797 bytes)


Type
Dynamic

Frequency Response
40 to 15,000 Hz

Polar Pattern
Cardiod (unidirectional) - effective rejection of sound at rear of microphone uniform at all frequencies - Front pickup characteristics symmetrical about axis (see Figure 2).

Impedance
Microphone rating impedance is 150 ohms (310 ohms actual) for connection to microphone inputs rated at 19 to 300 ohms.

Output Level (at 1,000 Hz)
Open Circuit Voltage: -75.5 dB (0.17mV)
Power Level: -56.0 dB

Phasing
Positive pressure on the diaphragm produces positive voltage on pin 2 with reference to pin 3 of the audio connector.

Case
Dark gray enamel die casting and polycarbonate with stainless steel screen

Net Weight (less cable)
284 grams (10 oz)