By: Shure
Microphones, Headphones & Wireless systems
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Lavalier Microphone
The Shure SM Microphones Series SM-94 is a unidirectional electret condenser microphone tailored to the instrument miking needs of professional musicians and sound engineers in both live performance and sound recording. Its smooth, flat frequency response is free of either a presence peak or a low-frequency rolloff, making it a perfect choice for all types of musical instruments.

The SM 94 is equally at home in sound reinforcement systems or in sound studios and motion picture/ TV scoring stages. When used with the optional wind-screen, the SM94 can be used by vocalists and speech-makers who desire a wide, flat response with minimum coloration.
A sensitive mic with a wide, flat response ideal for live amplified and acoustic instruments
Extremely well-suited for reproduction of stringed instruments, woodwinds and cymbals
AA battery or phantom power
Internal shock mount
Wide dynamic range
Smooth, flat frequency response
Uniform Cardioid condenser
Type Condenser
Frequency Response 40 to 16,000 Hz
Polar Pattern Cardioid
Sensitivity (at 1,000 Hz) Open Circuit Voltage –49 dBV/Pa (3.5 mV) (phantom); –50 dBV/Pa (3.2 mV) (battery) (1 Pa = 94dB SPL)
Impedance Rated at 150 O; 200 O actual
Output Clipping Level (1 kHz, 3% THD) 800-O Load–14 dBV (0.63 V) (phantom), 1% THD; –23 dBV (0.71 V) (battery), 3% THD
Total Harmonic Distortion < 0.25% (130 dB SPL at 250 Hz into 800 O load)
Maximum SPL 800 O Load= 141 dB (phantom), 123 dB (battery)
Hum Pickup –3 dB equivalent SPL in a 1 millioersted field (60 Hz)
Output Noise (equivalent sound pressure levels; measured with true rms voltmeter) 22 dB typical, A-weighted; 25 dB typical, weighted per DIN 45 505
Dynamic Range 119 dB (phantom); 101 dB (battery) (maximum SPL, 2000–O load, to A–weighted noise level)
Signal-to-Noise Ratio 72 dB (IEC 651)* at 94 dB SPL
Overvoltage Protection Maximum External Voltage Applied to Pins 2 and 3 with respect to Pin 1: 52Vdc; Reverse polarity protected to 75 Vdc
Polarity Positive pressure on diaphragm produces positive voltage on pin 2 relative to pin 3
Power Supply Voltage= 11 to 52 Vdc, ( ) pins 2 and 3; Current Drain= 1.0 to 1.2 mA max. at 52 Vdc
Battery Operation Type= 1.5 V alkaline, AA size (NEDA 15A); Life= Up to 5,000 hours with fresh battery
Connector XLR professional audio 3-Pin
Case Steel and brass construction with gray finish and stainless steel mesh grille
Net Weight 250 grams (8.8 oz) less battery
Frequency response 40 to 16,000 Hz

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Prices and specifications subject to change without notice.