Ear simulator/coupler
  • Ear simulator/coupler

CRY711 Ear simulator/coupler

It complies with IEC 60318-4 (60711), ITU-T Rec. P.57, with the resonance frequency of 13.5 kHz. Its acoustic impedance is similar to that of the human ears.

CRY711 Ear Simulator is an ear simulator that simulates the insertion of an earplug catheter into the ear canal or auricle, and simulates the coupling of earphones to the human ear to measure the acoustic performance of the earphones. CRY711 Ear Simulator is designed according to IEC 60318-4. Its built-in CRY372 pressure field measurement microphone is generally used for acoustic testing of high-quality in-ear headphones. It can work with a preamplifier and be connected to CRY series instruments.

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  • Stable performance
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Features
Standard-compliant

Standard-compliant

  • Compliance with IEC 60318-4:2010 Occluded - ear simulator for the measurement of earphones coupled to the ear by means of ear inserts

  • Compliance with ITU-T Rec. P.57(2011) Type 2 

  • Compliance with SJ/T 10659-1995 Occluded-ear simulator for the measurement of earphones coupled to the ear by ear inserts

Frequency Response Curve of CRY711 Ear Simulator

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

  • With the built-in CRY372 pressure-field pre-polarization measurement microphone, it can give its performance into full play.

Frequency Response Curve of CRY711 Ear Simulator
Frequency Response Curve of CRY711 Ear Simulator

Frequency Response Curve of CRY711 Ear Simulator

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

  • With the built-in CRY372 pressure-field pre-polarization measurement microphone, it can give its performance into full play.

Technical specification
CRY711 Ear Simulator / Coupled Cavity

Applicable Standards

IEC 60318-4(IEC60711)

ITU-T Rec. P.57 Type 2

Resonant frequency13.5kHz±1kHz

Frequency range (±1 dB)

100Hz~10kHz (stimulating human ear impedance)

Frequency range

20Hz~16kHz (for coupled cavity)

Height

23mm (excluding microphone)

Diameter

23.77mm

Weight

45g (excluding microphone)

Exampled of Options & Configuration Checklist

Example

Example 1

Example 2

Example 3

Preamplifier

CRY502 (traditional DB9 port)

CRY506 (ICP, BNC port)

CRY508 (ICP, BNC port)

CRY509 (traditional aviation plug)

Connection mode

Preamplifier with cable

BNC-specific cable

Aviation plug-specific cable

Images

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