BT|301

Transducer type electrostatic condenser
Operating principal pressure gradient
Diaphragms active diameter 21mm
Frequency range 20 Hz to 20 kHz
Polar pattern cardioid
Output impedance 50 ohms
Rated load impedance 1000 ohms
Suggested load impedance >500 ohms
Sensitivity at 1000 Hz into 1000 ohms load 33mV/Pa
S/N Ratio CCIR 468-3 weighted 76 dB
S/N Ratio DIN/IEC 651 A-weighted 87 db-A
Equivalent noise level DIN/IEC A-weighted 5,5 dB-A
Maximum SPL for 0.5% THD at 1000 ohm load 133,5 dB
Dynamic range of the microphone preamplifier 128 db
Phantom powering voltage on pins 2 & 3 of XLR +48 V (+/-4 V)
Current consumption < 2 mA
Output connector

3-pin XLR male, gold plated contacts

Signal polarity positive toward pressure on a diaphragm produces positive polarity voltage on XLR pin #2relatively to pin #3