Shure MC51B

The Shure MC51 is a subminiature, electret unidirectional condenser lavalier microphone.  They provide uncompromised sound quality and high reliability with minimal visibility in sound reinforcement applications such as television broadcasting and stage performances.  Despite its small size, the microphone's condenser element provides full, clear and natural reproduction of speech.  Each microphone is supplied with two foam windscreens to minimize wind noise.  The supplied mounting accessories consist of a lapel clip, a tie clip, a pin mount, and a magnet mount, giving the user a wide variety of options for placement.

• Extended frequency response with user changeable equalization caps for response shaping (omni only)
• Low visibility with a variety of options for mounting
• Low handling noise
• Legendary Shure quality, ruggedness, and reliability
• All models include magnet mount, lapel clip, dual tie clip, pin mount, and two foam windscreens

• Type: Condenser (electret bias)
• Polar Pattern: Cardioid
• Output Impedance: 136 ohms actual (rated at 150 ohms)
• Output Level: -46.0 dBV/Pa
• Maximum SPL: 143 dB at 1% THD/1 k ohm load
• Frequency Response: 20-20,000 Hz
• Dynamic Range: 108.0 dB
• Output Noise (equivalent SPL, A-weighted): 35 dB typical; 38 dB maximum
• Signal-to-Noise Ratio: 59 dB at 94 dB SPL
• Power Requirements: 11-52V DC (positive on pins 2 and 3, return on pin 1)
• Current Drain: 4.6 mA
• Polarity: Positive pressure on the diaphragm produces a positive voltage at pin 2 relative to pin 3 of the output connector of preamplifier
• Overvoltage protection: ±75.0 Vdc maximum from pins 2 and 3 to pin 1.
• Cap and Overmold Material: Polypropylene
• 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)
• Humidity: 0 to 95%
• Packaged Weight: 305 g (10.76 oz.)
• Cable and Connector: 1.5m (5 ft.), small-diameter, shielded, with miniature female 4-pin connector (TA4F type).
• Preamp Dimensions: 20mm (.79") diameter, 99mm (3.89") length
• Net Weight: 121 g (4.3 oz.) with cable, connector, and preamplifier