Shure WBH 54T Condenser Headset Microphone - supercardioid polar pattern, TQG connector.
Cartridge Type Condenser (electret bias)
Frequency Response 50 to 20,000 Hz
Polar Pattern Supercardioid
Output Noise (equivalent dB SPL,
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 k ohms
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 dB SPL at 1% THD/1 k ohms load
Dynamic Range 110 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)