Rion NC-75

The Rion NC-75 is Rion's new IEC 60942 Class 1 Acoustic Calibrator. The NC-75 features an integral refernce mic and feedback system which automatically compensates for atmospheric conditions and the load volume of the microphone making ideal not only for Rion microphones/sound level meters but any manufacturer's microphones as long as they meet the size specifications set out in IEC 61094-4.

The Rion NC-75 can be used with 1/2" and 1" microphones and can also support 1/4" microphones when used with an optional adaptor.

  • IEC 60942 Class 1 Acoustic Calibrator
  • Integral reference mic and feedback loop
  • Can be used with any IEC 61094-4 1/2" and 1" microphones (and 1/4" with optional adaptor)
  • 94 dB nominal SPL
  • 1000 Hz nominal frequency
  • at least 50 hours battery life 
  • at least 30 dB(A) isolation (allows use in noisy environments)