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ZT-547 Preamplifier - 1/4''
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Description
547 Preamplifier is paired with a pre-polarization 1/4" measurement microphone, and featured by high input impedance, low noise floor, and a wide frequency response range. It can be used with ZT-300 series 1/4'' pre-polarization measurement microphones and is also compatible with other brands of measurement microphones, such as B&K and G.R.A.S. 547 preamplifier is suitable for wide operating temperature and humidity. Its low output impedance can support long distance transmission. Preamplifier, cable and connector meet EMC requirements, bandwidth can up to 80kHz.
Specifications
Technical specification of 547Frequency response range 10 Hz - 80 kHz (±0.2 dB)
Input impedance >2GΩ
Output impedance <20Ω
Distortion factor (THD) <0.1%
Max. output voltage >5.0 Vrms
Power Supply Mode IEPE (2 mA - 10 mA)
Noise (A-weighted) ＜3 μVrms
Noise, linear (20 - 20 kHz) ＜10 μVrms
Gain 0 dB
Port type SMB
Applicable temperature range -30℃ ~ +70℃
Thread interface 5.7mm×60UNS（M5.7×0.423mm）
Diameter 6.35mm(1/4'')
Applications
Compact microphone systemsHigh-frequency measurement