Shure Beta 54

Shure BETA 54

The Shure BETA 54 is a subminiature, electret condenser headworn microphone. It provides uncompromised sound quality and reliability with minimal visibility in applications such as broadcast, theater, and touring. Despite the small size, the condenser element delivers full, clear, and natural reproduction of speech and vocals.

The microphone features a durable, low-profile wire frame headband which is fully adjustable for stability and comfort. A plastic carrying case protects the microphone and its accessories.

Features:
Supercardioid polar pattern provides maximum gain-before-feedback and ambient rejection
Extended frequency response tailored for vocal performances
Able to handle extremely high sound pressure levels (SPL)
Snap-fit foam windscreens stay in place during intensive movement
Available with an in-line preamp or with a TA4F connector for wireless applications

Technical Specifications:
Type:Condenser (electret bias)
Frequency Response:50Hz to 20KHz
Polar Pattern:Supercardioid
Output Noise (equivalent dBSPL, A-weighted):39.0 dB typical; 42.0 dB maximum
Signal-to-Noise Ratio:55.0 dB at 94 dB SPL
Recommended Minimum Input Impedance:>1 kilohm
Preamp Output Impedance:136 ohms
Output Level, open circuit, ref. 1v/Pa at 1 kHz:-52.0 +/- 3.0dB 2.51mV
Maximum Sound Pressure Level:149 dBSPL at 1% THD/1 kilohm load
Dynamic Range:110 dB (max. SPL with 1k load, minus typical A-wt. noise)
Current Drain:4.6 mA (preamp and microphone)
Power Requirements:Phantom power; 11 to 52 Vdc positive on pins 2 and 3, return on pin 1 (ground)
Net Weight:135.35 g (4.75 oz.) microphone and in-line preamp
Cable:1.5 m (5 ft.), small-diameter, shielded, with mini 4-pin connector (TA4F)