Measurement Microphone Sets

The measurement microphone sets have been combined so they fulfil our users’ typical measurement needs. Independently of your measurement system and application you should be able to find a set that suits your needs. The microphone sets can be connected directly to all professional measurement systems and as indicated they are available for both CCP and 7-pin LEMO inputs.

The CCP sets use high-quality coaxial cables, whereas the LEMO sets use a special, soft type of multicore shielded cable. If extended cables are to be used you should consider the possible influence on the upper frequency and dynamic ranges.

All microphone sets are delivered as a unit and are calibrated accordingly. The sets are delivered with calibration charts including sensitivity values and frequency response curves for the complete set. The sensitivity value can therefore be used directly in your system setup.

GRAS 246AO with SysCheck2TM

The GRAS 246AO builds on the renowned GRAS 46AO and has undergone the same strict highly accelerated life tests (HALT) designed to ensure the high quality that GRAS microphone users have come to expect and trust. It is suitable for laboratory work and ideal for production line testing in coupler setups for hearing aids, earphones, headphones, and headsets. GRAS 246AO is particularly convenient when the microphones are placed where physical verification is time consuming or hazardous—for example, if the microphones are hidden in complex mechanical structures, such as couplers / ear simulators or specialized test boxes on production lines.

SysCheck2™ – Helps Improved Productivity

Explore the Benefits

  • Remote-controlled verification of the entire measurement chain

  • Rapid check of all channels with a single click

  • Monitoring of environmental data (temperature, humidity and barometric pressure)

  • No physical interaction with microphones required

  • Plug n’ Play with Audio Precision and Siemens platforms

  • An intelligent microphone with self-test capability

  • Detects variation in sensitivity greater than 0.3 dB

  • Detects temperature change greater than 2°C / 3.6°F

  • RGB LEDs to locate microphones easily

  • CCP compatible-no need for expensive cabling

GRAS 246AE with SysCheck2TM

The GRAS 246AE builds on the renowned GRAS 46AE and has undergone the same strict highly accelerated life tests (HALT) designed to ensure the high quality that GRAS microphone users have come to expect and trust. It is aimed at general use and is particularly convenient when the microphones are placed in difficult or dangerous to reach locations, or if used in a distributed measurement where many microphones are spread out and validation needs to be performed in a short period of time.

SysCheck2™ – Remote Verification with a Single Click

Explore the Benefits

  • Remote-controlled verification of the entire measurement chain

  • Rapid check of all channels with a single click

  • Monitoring of environmental data (temperature, humidity and barometric pressure)

  • No physical interaction with microphones required

  • Plug n’ Play with Audio Precision and Siemens platforms

  • An intelligent microphone with self-test capability

  • Detects variation in sensitivity greater than 0.3 dB

  • Detects temperature change greater than 2°C / 3.6ºF

  • RGB LEDs to locate microphones easily

  • CCP compatible-no need for expensive cabling

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