JZ BH-3
The new microphone under the name Black Hole PE (BH-3) has a fixed cardioid polar pattern. After numerous requests from real life engineers, a -5db and -10db pad has been added. The pad is used to avoid overloading mic preamps with high output mic signals such as when recording loud guitar amplifiers or cabinets and kick drums. The capsule of the Black Hole can handle 135db SPL and this mic can manage also an operatic soprano at close range.
Transducer type: electrostatic
Operating principal: pressure gradient
Diaphragms active diameter: 27 mm
Frequency range: 20 Hz to 20 kHz
Polar pattern: cardioid
Output impedance: 50 ohms
Rated load impedance: 100 ohms
Suggested load impedance: >250 ohms
Sensitivity at 1000 Hz into 1000 ohms load: 21 mV/Pa
S/N Ratio CCIR 468-3 weighted: 76.5 dB
S/N Ration DIN/IEC 651 A-weighted: 87.5 db-A
Equivalent noise level DIN/IEC A-weighted: 6.5 dB-A
Dynamic range of the microphone preamplifier: 128 db
Phantom powering voltage on pins 2 & 3 of XLR: +48 V (+/- V)
Current consumption: < 1.5 mA
Output connector: 3-pin XLR male, gold plated
Signal polarity: positive toward pressure on a diaphragm produces positive polarity voltage on XLR pin #2 relatively to pin #3.
Dimensions: 203 x 51 x 28.
