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Shure SM93

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Omnidirectional Condenser, Micro-Lavalier
The SM93 is supplied with a sew-on mounting bracket, a mounting block with attached tie bar, and an acoustic windscreen to minimize wind noise in outdoor applications. It is also supplied with a dual mounting block with attached tie bar. 


Subminiature lavalier design; ideal size for theater, television broadcasting, video, film, and sound reinforcement
Small, inconspicuous mounting hardware
Full, clear sound comparable to larger microphones
Smooth extended frequency response with presence rise specially tailored for chest-worn microphone operation
Controlled low-frequency rolloff reduces low-frequency clothing and room noise
Low distortion, wide dynamic range
Versatile mounting accessories allow a variety of low-visibility applications
Preamplifier assembly can be pocketed, strapped to the body, or clipped to belt or waistband
Omnidirectional condenser
Frequency response: 80 to 20,000 Hz
80 to 20,000 Hz, 12 dB/octave rolloff below 100 Hz
Polar Pattern
Omnidirectional, uniform with frequency
Output Impedance
Rated at 150 ohms (90 ohms actual)
Recommended minimum load impedance: 800 ohms
(May be used with loads as low as 150 with reduced clipping level)
Output Level
Open Circuit Voltage: -43 dBV/Pa (7.0 mV)
(1 Pascal = 94 dB SPL)
Output Clipping Level (at 1,000 Hz)
-18 dBV (0.13 V) minimum
Total Harmonic Distortion
Less than 1% at 120 dB
Maximum SPL
120 dB
Dynamic Range (maximum SPL to A-weighted noise level)
98 dB
Output Noise (equivalent SPL)
22 dB typical, A-weighted 26 dB, weighted per DIN 45 405
Hum Pickup (electromagnetic)
-4 dB equivalent SPL in a 1 mOe field (60 Hz)
Signal-to-Noise Ratio
72 dB at 94 dB SPL (IEC 651)
Positive pressure on microphone diaphragm produces positive voltage on pin 2 relative to pin 3 of preamplifier output cable connector
Recommended Operating Voltage
11 to 52 Vdc phantom. Protected against reverse voltage application
Current Drain
0.33 mA
Environmental Conditions
Operating Temperatures: -18 to 57 degrees C (0 to 135 degrees F)
Storage Temperatures: -29 to 74 degrees C (-20 to 165 degrees F)
Black 1.27 m (4.17 ft), attached, two-conductor, shielded, terminated by miniature connector type (TA4F)
Microphone: Black ABS thermoplastic case with stainless-steel-mesh grille
Preamplifier: Steel case with non-reflective black finish, black-chrome belt clip
Net Weight
Microphone: 16 g (0.57 oz)
Preamplifier: 118 g (4.17 oz)
More Information
Weight 1.0000
Brand Shure
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