BETA 53 Headworn Microphone (Omni-directional)

Model# SU-BETA 53

The Beta 53 is a fully adjustable omnidirectional condenser headworn vocal microphone, designed for applications where unconspicuous appearance and incredible sound quality are required. Its lightweight, adjustable, modular headband, flexible wireframe and soft earpieces provide a comfortable fit while still allowing the Beta 53 to be positioned as close to the left or right corner of the mouth as possible, assuring maximum voice pickup. The Beta 53 microphone features an extended frequency response and high SPL handling ability. It is uniquely designed to provide the sound quality and performance consistency required for environments such as professional theater, event production, trade shows and seminars. The Beta 53 now features improved RF immunity against cellular and RF devices. A wireless version is available as the WBH53.

Features
• Comfortable, latex-free earforms that hide behind the ears	• Corrosion resistant
• Thin, non-reflective wireframe that is easily hidden underneath hair	• Easy to clean
• Ultra-thin detachable microphone boom mount for right or left positioning	• Durable carrying case for protective storage
• Interchangeable frequency response caps (mild or high, two pieces each)	• Available with either TA4F connectors or tinned leads (no connector) for full wireless system compatibility
• Two foam windscreens included	• Includes In-Line Preamplifier
• Clothing clip for securing cable	• WBH53: Available in either black or tan

Details
Type Condenser (electret bias) Frequency Response 20Hz to 20KHz View Larger Polar Pattern Omnidirectional Output Noise (equivalent dBSPL, A-weighted) 39.0 dB typical; 42.0 dB maximum Signal-to-Noise Ratio 55 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 -50.0 +/- 3.0dB 3.16mV Maximum Sound Pressure Level 147 dBSPL at 1% THD/1 kilohm load Dynamic Range 108 dB (max. SPL with 1k load, minus typical A-wt. noise) Current Drain 4.6 mA (preamp and microphone) Output Polarity Positive pressure on the diaphragm produces a positive voltage at: Pin 2 relative to pin 3 at the output connector of the preamp 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)