Meggitt Sensing Systems, a Meggitt group division, has introduced the Endevco model EM26CF, a general purpose 1/2 in. ISOTRON (IEPE) microphone preamplifier, designed for direct compatibility with prepolarized condenser microphones in support of a variety of precision acoustic test requirements.
- For use with all Endevco prepolarized microphones
- Incorporates use of Isotron power supply for low inherent noise level, large dynamic range and wide frequency response from 2.5 Hz to 100 kHz
- Small and robust ceramic thick-film substrate construction offers high-input impedance
- Guard ring provides shield to minimize influence of stray capacitance and microphonic interference
- Stainless steel housing, with BNC output connector, around preamplifier components offers strength and durability
- Includes two user-selectable flush-mounted switch settings for optimal gain and filtering
- Features gain selections of 0 dB for normal conditions and 20 dB for enhancing weak microphone signals
- Filter settings allow selection of A-weighting filter, linear setting, or high-pass filter
- Applications include vehicle pass-by noise testing, environmental noise analysis and building acoustics
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