CRY3711 Ear Simulator IEC60318-4

The CRY3711 is a precision ear simulator engineered to replicate the acoustic impedance of the human ear canal, enabling accurate and repeatable measurements of in-ear headphones and earphones in full compliance with IEC 60318-4.

With a built-in 1/2″ prepolarized pressure-field measurement microphone and input impedance closely matching the average human ear, the CRY3711 bridges the gap between laboratory measurement and real-world listening experience — delivering data you can trust for R&D, production testing, and product certification.

Why Engineers Choose the CRY3711

• True-to-life impedance matching — Input impedance closely replicates the average human ear, ensuring lab measurements correlate with real-world listening experience
• Integrated measurement microphone — Built-in 1/2″ prepolarized pressure-field microphone eliminates the need for separate sensors, simplifying your test chain
• IEC 60318-4 compliant — Results are globally accepted for product certification, quality control, and regulatory submissions
• Broad compatibility — Works seamlessly with CRYSOUND electroacoustic analyzers and third-party measurement systems

Applications

🎧 TWS Earbuds Production Testing

Measure frequency response, sensitivity, distortion (THD), and polarity of true wireless earbuds at production speed. Pair the CRY3711 with an electroacoustic analyzer for automated, high-throughput quality control that catches defects before they ship.

🎵 In-Ear Monitor R&D

Characterize driver performance, crossover tuning, and frequency response shaping during the development cycle. The CRY3711’s human-ear impedance match means your bench measurements translate directly to how the product sounds in a real ear — reducing the gap between objective data and subjective experience.

📋 Standards Compliance & Certification

Verify that your in-ear products meet the electroacoustic performance requirements specified in IEC 60318-4. Whether preparing for CE marking, international certification, or customer acceptance tests, the CRY3711 provides the traceable, standardized measurements you need.

🔬 Acoustic Research & Education

Trusted by university labs and research institutes for hearing science studies, headphone psychoacoustic research, and acoustic transducer development projects.

How to Choose: Ear Simulator Comparison

Not sure which ear simulator fits your application? Here’s a quick comparison:

Quick selection guide:

• Testing TWS earbuds or IEMs? → CRY3711 or CRY3721 (ultra-low noise)
• Testing over-ear headphones or headsets? → CRY3718
• Need the lowest possible noise floor for premium audio R&D? → CRY3721

Frequently Asked Questions

What is the difference between IEC 60318-1 and IEC 60318-4?

IEC 60318-1 defines an ear simulator for supra-aural (over-ear) and circumaural headphones, while IEC 60318-4 specifies an occluded ear canal simulator for insert earphones (in-ear). The CRY3711 complies with IEC 60318-4, making it ideal for TWS earbuds and in-ear monitors.

Can the CRY3711 be used with third-party analyzers?

Yes. The CRY3711 outputs a standard analog signal via its built-in 1/2″ microphone, compatible with most audio analyzers on the market including CRYSOUND’s own electroacoustic analyzers.

How often should the CRY3711 be calibrated?

We recommend annual calibration to maintain traceable measurement accuracy. CRYSOUND offers professional calibration services — contact us for details.

What accessories do I need to get started?

At minimum, you’ll need a preamplifier and a measurement system (analyzer or data acquisition). Consider the CRY3711-S01 Ear Simulator Set, which includes the ear simulator, preamplifier, and cables for a ready-to-use solution.

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