CRY3403-S01 Free-Field Microphone Set, 1/4", 4mV/Pa

The CRY3403-S01 is a 1/4-inch free-field prepolarized measurement microphone and preamplifier set, specifically engineered for ultra-high-frequency and high dynamic range acoustic measurements.

With its optimized design, the CRY3403-S01 delivers an exceptionally wide and flat frequency response extending up to 90 kHz, while accommodating sound pressure levels of up to 160 dB. This makes it an outstanding general-purpose measurement microphone set for applications such as high-definition audio measurement and a broad range of ultrasonic acoustic testing.

Technical Specifications
Field Type
Free-field
Sensitivity
4mV/Pa, -48±3dB re 1V/Pa
Frequency Response
4Hz to 90kHz±2dB
Polarization Voltage
0V
Dynamic Range(re.20uPa)
35 dBA to 160 dB
Operating Temperature
-30 to +70℃ (-22 to +158℉)
Temperature Stability
0.010dB/℃(-10 to +50℃) 0.006dB/℉(+14 to +122℉)
Static Pressure Stability
-0.01dB/kPa
Operating Humidity Range
0 to 90%RH no condensation
Humidity Stability
< 0.1dB (0 to 90%RH no condensation)
Pressure Equalization Vent
Side vented
IEC 61094-4 Type
WS3F
Output Impedance
< 50Ω
Maximum Output Voltage
> 10.0Vp
Current Source
IEPE (2mA to 20mA)
Typical Operating Current
4mA
Interface Type
SMB
Height with Grid
56.2mm (2.213")
Diameter with Grid
7mm (0.276")
Main Features
Product Highlights
Extended Bandwidth for More Demanding Measurements

Extended Bandwidth for More Demanding Measurements

The CRY3403-S01 is designed for test applications that go beyond the bandwidth limits of conventional microphones. With a frequency response extending up to 90 kHz, it is capable of capturing more high-frequency characteristics and finer acoustic detail, making it well suited for advanced measurement scenarios such as microphone arrays, aircraft engine noise testing, in-vehicle ultrasonic radar, drone positioning, and bioacoustics.

Extended Bandwidth for More Demanding Measurements
Stable and Reliable Performance Under High SPL Conditions

Stable and Reliable Performance Under High SPL Conditions

From low-level signals to extremely high sound pressure measurements, the CRY3403-S01 provides ample dynamic capability. Its wide dynamic range of 35 dBA to 160 dB offers greater flexibility in applications that require both extended bandwidth and high-SPL performance, while helping reduce the cost and inconvenience of frequent sensor replacement and repeated calibration.

Stable and Reliable Performance Under High SPL Conditions
Designed for Audio and Ultrasonic Testing

Designed for Audio and Ultrasonic Testing

As a 1/4-inch free-field prepolarized microphone set, the CRY3403-S01 is ideally suited for high-resolution audio measurements, ultrasonic acoustic applications, and a wide range of advanced R&D tasks. It is an excellent choice for teams seeking both compact size and extended bandwidth in one measurement solution.

Designed for Audio and Ultrasonic Testing
Small-Diameter Design for Minimal Sound Field Disturbance

Small-Diameter Design for Minimal Sound Field Disturbance

The CRY3403-S01 features a 1/4-inch microphone design that helps minimize disturbance to the original sound field during measurement, enabling more accurate and representative test results. Compared with larger microphones, its compact sensing element offers clear advantages in high-frequency measurements, near-field testing, and space-constrained setups, while also reducing reflections and obstructions caused by the microphone body itself. This makes it particularly suitable for precision acoustic measurements where sound field fidelity is critical.

Small-Diameter Design for Minimal Sound Field Disturbance
CRY3403-S01 Measurement Microphone Set Typical Frequency Response

CRY3403-S01 Measurement Microphone Set Typical Frequency Response

The graph (right) shows the frequency response curves for 0° incidence in a free-field environment and the frequency response curves obtained using the electrostatic excitation method.

CRY3403-S01 Measurement Microphone Set Typical Frequency Response
10-Year Warranty

10-Year Warranty

The CRY3403-S01 measurement microphone is backed by a 10-year limited warranty from CRYSOUND. For details, please refer to the applicable warranty terms and service policy.
CRYSOUND recommends that the microphone be calibrated annually, with an additional calibration performed after exposure to extreme test environments.

10-Year Warranty

Get in touch

If you are interested or have questions about our products, book a demo and we will be glad to show how it works, which solutions it can take part of and discuss how it might fit your needs and organization.

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