Precision, convenience combine in microphone system

14th March 2018
Posted By : Mick Elliott
Precision, convenience combine in microphone system

The 376M03, a calibrated microphone system combining a 0.5in microphone cartridge with a phantom-powered preamplifier – the 426M16 – in its configuration has been added to Audio Precision’s line of measurement microphones. The preamplifier combines the precision of calibrated, standardised measurement microphones with ubiquitous mic accessories offering phantom power, balanced connections for improved immunity to induced noise, and easy connectivity via common XLR cables.

The preamplifier, whether purchased individually or as part of the 376M03 microphone system, is delivered with adapters allowing it to mount either 0.5in or 0.25in standard IEC 61094-4 prepolarised microphone cartridges.

Since microphones with larger diameters tend to have higher sensitivity and lower self-noise, while smaller mics can cover a wider frequency range, the preamplifier’s inherent flexibility allows the user to easily configure their mic system to specific measurement applications and leverage the relative strengths of different mic sizes.

Depending upon the AP microphone cartridge configured with the 426M16, mic system performance offers a noise floor as low as 15.5dB(A), or frequency response to 100kHz.

The mic cartridges use a stainless alloy which remains stable during temperature, humidity and atmospheric pressure changes, yielding more accurate test results.

The microphones are calibrated, ensuring the utmost of confidence in measurement results, especially when paired with calibrated instruments such as the APx1701 Transducer Test Interface and any APx500 Series audio analyser.

Each mic is delivered with its own certificate of calibration.

In addition to their configurability, these mic systems are easily paired with a wide range of microphone accessories offering phantom power, and the ready connectivity of common XLR cables.

The use of balanced XLR cables also provide improved immunity to induced noise.

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