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China Shenzhen Baichuan electronics Co., LTD

Professional manufacturer of acoustic test instruments.


Ear simulator/

CRY318 Ear simulator/coupler

CRY318 Ear simulator/coupler
Compliant with IEC 60318-1, similar to the acoustic impedance of human ears

CRY318 Ear Simulator is a type of human ear simulator that simulates the average human ear impedance. When coupled to a sound source, an acoustic impedance load similar to human ears can be loaded onto the sound source.

With IEC 60318-1-compliant standard design, 1/2'' pressure field measurement microphone (CRY372) and preamplifier (CRY508), CRY318 Ear Simulator is connected to CRY series testers and mainly used to test telephone receivers, headsets, and plug-in headphones, etc.

Technical specification

CRY318 Ear Simulator / Coupled Cavity

Applicable Standards IEC 60318-1

ITU-T Rec. P.57 Type 1

Frequency range 100Hz~4kHz ±1 dB(stimulating human ear impedance)
Frequency range of coupled cavity 20Hz~16kHz(for coupled cavity)
Height 32mm (including adapter to be connected)
Diameter 60mm
Weight 208g (including adapter to be connected)

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Ear simulator/coupler

Ear simulator/coupler is a device that simulates the physical characteristics of the human ear. It includes a microphone and an acoustic network with a structure similar to the acoustic characteristics of the human external ear. It is used to make quantitative and qualitative evaluations of the performance of headphone equipment.


1、IEC 60318-1:2009 Electroacoustics – Simulators of human head and ear – Part 1: Ear simulator for the measurement of supra-aural and circumaural earphones

2、GB/T 25498.1-2010 Electroacoustics – Simulators of human head and ear – Part 1: Ear simulator for the measurement of supra-aural and circumaural earphones

3、ITU-T Rec. P.57(2011) Type 1 artificial ear

Frequency Response Curve of CRY318 Ear Simulator

Elaborate design, sophisticated materials and precision manufacturing ensure excellent product consistency.

Equipped with CRY372 pressure-field pre-polarization measurement microphone, it can give its performance into full play.

Exampled of Options & Configuration Checklist

Example Example 1 Example 2 Example 3

CRY502 (DB9 port)

/ CRY506 (ICP, BNC port)

CRY508 (ICP, BNC port) CRY509 (DB9 port, aviation plug)
Microphone CRY332/CRY372 CRY332/CRY372 CRY332/CRY372
Connection mode Preamplifier with cable BNC-specific cable Aviation plug-specific cable

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