Back to Electroacoustic Test Accessories Ear Simulator/Coupler 
ZT-711 Ear simulator/coupler
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Description
ZT-711 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. ZT-711 Ear Simulator is designed according to IEC 60318-4. Its built-in ZT-372 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 series instruments.
Specifications
ZT-711 Ear Simulator / Coupled CavityApplicable Standards IEC 60318-4（IEC60711）；ITU-T Rec. P.57 Type 2
Resonant frequency 13.5kHz±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)
Optional ItemsMicrophone ZT-372/332
Preamplifier ZT-508 (ICP, BNC)
Applications
Insert earphone testingOccluded-ear measurement