CRY6151B is a robust and reliable electroacoustic analyzer with a frequency range spanning from 20Hz to 20kHz. It is designed to evaluate a diverse array of devices, including USB, Bluetooth®, and noise-canceling headphones; electret, MEMS, and moving-coil microphones; receivers; speakers; Bluetooth loudspeakers; and loudspeaker crossover devices.
Technicians can assess device performance using key metrics and procedures such as sensitivity (SPL), impedance, total harmonic distortion (THD), resonance frequency (F0), headphone balance, headphone positioning, phase, polarity, microphone current and voltage, signal-to-noise ratio (SNR), microphone directivity, speaker Thiele/Small (TS) parameters, and telephone loudness ratings. The CRY6151B offers comprehensive capabilities for thorough and precise evaluation of electroacoustic equipment.
| Quantity of Channels | 4-channel input/output (scalable for synchronous 8-channel input/4-channel output) |
|---|---|
| Input Dynamic Range | 115dB typical value |
| Noise floor | -105dBV(5.6uV), -115dBV (1.8uV), A weighting |
| Frequency Response Range | 20 – 20kHz (±0.03dB), can be customized to support 1 – 96kHz |
| Crosstalk | -118dB@1kHz |
| Octave | 0ct 1/12, 0ct 1/24, 0ct 1/3, 0ct 1/6 |
| Distortion | ≤0.01% |
| Input Amplitude Range | Acoustic signal(35dB~140dB), Electrical signal(-95dB~10dB) |
| ECM Electret Mic Resistance | 0 – 10kΩ (software control) |
| Output | 14-bit output, Maximum current 10mA |
| ECM Electret Mic Current | 0 – 1mA ±1% |
| Power Supply | 50Hz, 220V+10% |
| Size | 330mm*280mm*75mm |
| Sample Rate | All channels for simultaneous sampling at 44.1kHz – 192kHz, with 24-bit |
| Output Dynamic Range | 115dB typical value |
| Coupling Method | AC |
| Distortion (THD) | 0.00001@1kHz |
| Built-in Amplifier Power | 1W (2-way headphone), 20W (2-way mouth simulator) |
| Stimulus Signal | Fast step sweep, Noise signal, Polyphonic signal, Precise step sweep, Valid value |
| Output Impedance | 150Ω, 1Ω, 33Ω, 600Ω, 750Ω |
| Maximum Output Voltage | 5V |
| Max.Input Voltage | 3V |
| ECM Electret Mic Power | 0 – 6.25V (software control) |
| Input | 1 bit input (foot switch) |
| Power level | High level +5V, Low level GND |
| Speaker Impedance | 0-2kΩ ±1% (differential and single-ended supported) |
| Operating Temperature | 0 to +40℃, RH≤80% |
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CRY6151B
