Rion NC-72A Pistonphone

A Stable and Precise Sound Source

The NC-72A is a class 1 pistonphone calibrator suitable for calibration of high-precision sound level meters or even as a laboratory standard sound source.

  • Accepts 1 inch and 1/2 inch diameter microphones (with 1/2 inch microphone adapter)
  • Nominal sound pressure level: 114dB
  • Nominal frequency: 250Hz
  • Supplied with a Rion barometer for pressure difference compensation

Applicable Standards

  • IEC 60942 Class LS/C