SS 771-11-L2
- Ultra low noise, 12dBA
The high sensitivity and low noise artificial ear is an ear simulator that simulates the way an earplug catheter is inserted into the ear canal or auricle, and simulates the coupling between the earphone and the human ear to measure the acoustic performance of the earphone. The SS 771-11 is a coupled cavity and preamplifier integrated non-detachable construction, it is a pre-polarized pressure field measurement microphone kit.
With MegaSig PM 0083 IEPE signal conditioner to achieve the best test results;
Description
Specifications
| Parameter | Value |
|---|---|
| Sound Field Type | Pressure field |
| Earphone Type | 入耳式 |
| Coupler Volume | / |
| Frequency Response | 20Hz - 10KHz ± 0.5dB 10kHz - 20kHz ± 2dB |
| Dynamic Range | 12dB(A) - 125dB |
| Noise Floor | 12dB(A) |
| Sensitivity | 低底噪量程:250mV/Pa (-12dB±2dB) re 1V/Pa 高声压量程:50mV/Pa (-26dB±2dB) re 1V/Pa |
| Standard | / |
| Connector | SMB |
| Operating Temperature | -20°C to 60°C |
| Relative Humidity | 10- 90% no condensation |
Specifications
Types of Acoustic Fields | Pressure Field |
Polarization voltages | 0V(Prepolarized) |
Frequency range | 20Hz – 16kHz ± 1dB |
Dynamic range | 21dB(A)- 146dB(1000 Hz THD<3%) |
Background noise | 21dB(A) |
Sensitivity mV/Pa(dBV/Pa) | 45mV (-26.0dB) ± 2dB |
Maximum Output Voltage | 5.6V |
Output Impedance | <50Ω |
Power Supply | 2mA - 10mA(typical 4mA) |
Pressure Equalization Method | Post-equalization |
Connection | BNC |
Temperature range, operation | -20℃ to 60℃ |
Temperature range, storage | Temperature:25℃±5℃,Humidity:50%±15%RH(Ensure the long-term stability of the sensor) |
| Humidity range non condensing | 20 - 90% without condensation |
Humidity coefficient | <0.1dB |
Dimensions(unit:mm)




