Item Includes
In-Line Preamplifier SM93 - Black Tie Clip Assembly RK354SB - Black Sew-on Mounting Bracket 65B1733 - Dual Black Tie Clip Assembly RK307DB - Black Windscreen RK355WS - Zippered Carry Case 26A13.
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Description
The SM93 is an economical omnidirectional subminiature lavalier condenser microphone designed for use in speech applications. Despite its small size, the 93 microphone element provides full, clear sound comparable to that of much larger microphones. Its frequency response is tailored to body-worn applications, with low-end rolloff and presence rise.
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. The SM93 is also supplied with a dual mounting block with attached tie bar.
The SM93 is powered by phantom power supplied by broadcast, sound reinforcement or recording equipment, or an external phantom supply. The SM93 operates over an extremely wide voltage range of 11 to 52 Vdc, covering both DIN and IEC phantom power standards. A dual-channel power supply (Shure Model PS1A) is available for providing phantom power to the SM93.
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Features
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Subminiature lavalier design; ideal size for theater, television broadcasting, video, film, and sound reinforcement |
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Small, inconspicuous mounting hardware |
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Full, clear sound comparable to larger microphones |
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Smooth extended frequency response with presence rise specially tailored for chest-worn microphone operation |
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Controlled low-frequency rolloff reduces low-frequency clothing and room noise |
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Low distortion, wide dynamic range |
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Versatile mounting accessories allow a variety of low-visibility applications |
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Preamplifier assembly can be pocketed, strapped to the body, or clipped to belt or waistband |
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Omnidirectional condenser |
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Frequency response: 80 to 20,000 Hz |
Specifications
| Type | Condenser (electret bias) |
| Applications | Body-worn applications in TV broadcasting, theater, and sound reinforcement. |
| Frequency Response | 80 to 20,000 Hz, 12 dB/octave rolloff below 100 Hz |
| Polar Pattern | Omnidirectional, uniform with frequency |
| Impedance | Rated at 150 ohms. (90 ohms. actual) Recommended minimum load impedance: 800 ohms.. (May be used with loads as low as 150 ohms. with reduced clipping level) |
| Output Level | Open Circuit Voltage: 43 dBV/Pa (7.0 mV)
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) |
| Connector | XLR-3M Type , Preamp Output Termination |
| Polarity | Positive pressure on microphone diaphragm produces positive voltage on pin 2 relative to pin 3 of preamplifier output cable connector |
| Weight | Microphone: 16 g (0.57 oz)
Preamplifier: 118 g (4.17 oz) |
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