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2 September 2015

Market-leading signal quality, reliability & robustness, ideal for challenging applications including production line testing of portable communication devices

G.R.A.S. Sound and Vibration A/S is reinforcing the stability and flexibility of its latest 46BL measurement microphone. This high performance measuring microphone offers market-leading signal quality, reliability and robustness making it ideal for production line testing of portable communication devices and general acoustic measurements where high sensitivity and low noise are required.

The 46BL, which is the newest member of G.R.A.S. range of standard microphone sets, is a ¼” sensor yet offers the same high sensitivity and low noise floor as that of a ½” microphone.

Specially designed by G.R.A.S. for challenging low sound pressure applications, the 46BL microphone is ideal for production line testing of portable communication devices, such as mobile phones, laptop computers, tablets, GPS receivers and similar devices using microspeakers.

One of the industry’s most reliable ¼” measurement microphones, the G.R.A.S. 46BL offers the convenience of just one sensitivity level as it is calibrated as one unit.

G.R.A.S. 46BL microphone offers an array of unique features including a frequency range from 4Hz to 20kHz; dynamic range from 25dB(A) to 147dB; high sensitivity of 18mv/Pa; Constant Current Power (CCP); TEDS IEEE 1451.4 compatibility; five-year warranty and easy repair option.

For further information and specifications for the 46BL microphone please visit

For more information, please contact:

G.R.A.S. Sound & Vibration
2234 E. Enterprise Parkway
Ohio 44087
Tel:  +1 330-425-1201
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