"The Grand Pearl" is based on special version of our top level large size dual diaphragm electrostatic capsule. Diaphragms are made of the highest quality 6-micron Mylar film, sputtered with our special formula of gold mixture, and tensioned on precisely made brass back-plate. All it provides faster impulse transient response, minimal sound coloration, prevents from low frequency loss, and handling of louder sound pressure levels. Each capsule is carefully checked and measured in an anechoic chamber for optimum of performance.
Unidirectional polar pattern effectively reduces ambient stage noise and acoustic feedback and provides optimally wide frontal incidence angle. The microphones head grille is made as multi-layer brass mesh acoustic filter that reduces plosive sounds, breath, pop and wind noise, minimizes internal resonance effects, but keeps sound transparency unaffected the same time. Additional polyurethane open cell foam windscreen is available as option.
Features:
Transducer type: electrostatic
Operating principle: pressure gradient
Diaphragm's active diameter: 26 mm (1")
Frequency range: 20 Hz to 20 kHz
Polar pattern: unidirectional, cardioid
Output impedance: 50 ohms
Rated load impedance: 1000 ohms
Suggested load impedance: > 500 ohms
Sensitivity at 1000 Hz into 1000 ohms load: 20 mV/Pa
S/N Ratio CCIR 468-3 weighted: 75 dB
S/N Ratio DIN/IEC 651 A-weighted: 86 db-A
Equivalent noise level DIN/IEC A-weighted: 8 dB-A
Maximum SPL for 0.5% THD at 1000 ohm load: 136 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 #2 relatively to pin #3
Dimensions and weight: 207 x 42.5 head diameter (24.5 shaft) mm, 350 grams
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