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Audio Precision Expands Microphone Product Family
Offers convenience and flexibility via phantom-powered preamplifier compatible with ½" and ¼" prepolarized microphone cartridges By PR Newswire

BEAVERTON, Ore., March 13, 2018 /PRNewswire/ -- Audio Precision, the recognized standard in audio test, today announced the expansion of its line of measurement microphones with the introduction of the 376M03, a calibrated microphone system combining a ½" microphone cartridge with a phantom-powered preamplifier – the 426M16 – in its ½" configuration. The new preamplifier combines the precision of calibrated, standardized measurement microphones with the convenience of ubiquitous mic accessories offering phantom power, balanced connections for improved immunity to induced noise, and easy connectivity via common XLR cables.

The Audio Precision 426M16 phantom-powered preamplifier, shown here configured with both ½-inch and ¼-inch microphone cartridges.

AP's new preamplifier, whether purchased individually or as part of the 376M03 microphone system, is delivered with adapters allowing it to mount either ½" or ¼" standard IEC 61094-4 prepolarized 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 15.5 dB(A), or frequency response to 100 kHz. 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 analyzer. 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.

"The capabilities and flexibility of our new phantom-powered microphones are the perfect complement to the performance and configurability of our APx audio analyzers," said Dave Schmoldt, Audio Precision Chief Executive Officer. "We're confident they'll be a welcome addition to a host of applications, from loudspeaker measurement to high-definition recording."  

About Audio Precision
Audio Precision (AP) is a recognized world leader in electronic audio and electro-acoustic test instrumentation. Since 1984, AP's analyzers have helped engineers to design and manufacture innovative solutions ranging from semiconductor devices to consumer, automotive, and professional audio products. For more information, visit

Eric Hodges
+1 503 805 0053
[email protected]


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