Electroacoustics Accessories

Type 4232 – Anechoic Test Box

Type 4232 – Anechoic Test Box

The Anechoic Test Box Type 4232 is designed to produce an exact acoustic replicate of an electric input signal and to exclude all external noise when performing measurements on hearing aids and microphones.


  • Fast and reliable testing of hearing aids and microphones in a uniform sound field
  • Investigation of hearing aids, microphones, earphones and telecoils

The test box provides excellent insulation from external noise, even at low frequencies, and well-defined uniform test conditions, important requirements for obtaining accurate and repeatable measurements.