EQ 40PM-1 Microphone With EQset Technology

Paving the way for contract manufacturers and production line managers to break into new and more profitable markets and attract new business from high-end audio brands, the EQ 40PM-1 microphone with EQset technology makes advanced testing of high-frequency content and accurate testing of louder products available to a larger audience. The microphone enables more audio manufacturers to match the development of new high-end audio products. In addition, contract manufacturers will find that the stability helps reduce measurement uncertainty and limits the risk of false passes and false failures on the production line, increasing product quality.

The microphone will benefit any production line and is especially ideal for advanced audio test settings.

EQset technology simplifies microphone setup, monitoring, and replacement and also eliminates correction when setting up new production lines or replacing microphones on existing lines. In addition, it eliminates the need for price-prohibitive new equipment or retooling of existing systems.

The EQ 40PM-1 design reduces sensitivity variation to such an extent that, when used in typical production line conditions, compensation is unnecessary, further reducing the time needed for calculations and corrections and the associated risk of false passes and failures.


  • Low entry cost
  • No special hardware needed
  • Fully backward compatible with CCP setups
  • Uniform flat frequency response fixed sensitivity (or gain)
  • Plug & play in any 48V phantom power or CCP-based setup
  • Narrow pressure response spread (±0.5 dB) reduces the risk of false passes and false failures
  • High environmental stability


  • Production-line testing of audio devices such as drivers, receivers, micro-speakers, and miniature microphones
  • Measurements in confined spaces
 Polarization/Connection 0V/CCP Dynamic Range Low Dynamic Range High 120 dB  Power supply (Constant Current Power)  4 to 10 mA Microphone venting Front Output Impedance Operation Temp. 14 to 131°F (-10 to 55°C) Storage Temp. -13 to 158°F (-25 to 70°C) Humidity Range 0 to 90% RH Connector Type SMB CE/RoHS compliant/WEEE Yes Weight 3.5 g Sensitivity (250 Hz; ±0.2 dB) 25 mv/Pa (-32.04 dB re 1V/Pa) Pressure Response (±0.5 dB) 20 to 10k Hz Pressure Response (±2 dB) 10k to 20k Hz Output DC Bias Voltage V13.7 ±0.5  Max. Cable Length 33 ft (10 m (@ 4 mA)) Frequency Range 20 Hz to 20 kHz

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