- Description
Details
The SM93 is an economical omnidirectional miniature lavalier condenser microphone designed for use in speech applications. Despite its small size, the 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 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.- Features
Features
- 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
- Specification
Type Condenser (electret bias) Frequency Response 80 to 20,000 Hz, 12 dB/octave rolloff below 100 Hz Polar Pattern Omnidirectional, uniform with frequency Output Impedance Rated at 150 Ω (90 Ω actual) Recommended minimum load impedance: 800 Ω Output Level (1 Pascal = 94 dB SPL) 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 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) Polarity 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 Operating Temperatures -18° to 57° C (0° to 135° F) Storage Temperatures -29° to 74° C (-20° to 65° F) Cable Black 1.27 m (4.17 ft), 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) - Reviews
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