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46AE 1/2" CCP Free-field Standard Microphone Set
46AE 1/2" CCP Free-field Standard Microphone Set
The GRAS 46AE is a 1/2" Constant Current Power (CCP) free-field microphone set for measuring medium sound pressure levels at medium frequencies. It is terminated with a BNC connector and is TEDS compatible. The equivalent traditional 200 V (LEMO) type is GRAS 46AF.
The 46AE is a free-field microphone set and as such optimized for all acoustic applications, where the location of the main sound source is known and the microphone can be pointed directly at it ensuring 0° incidence.
The wide frequency range makes it ideal for general acoustic diagnostics. 46AE conforms with IEC 61094 WS2F and IEC 61672 Class 1.
Key Specifications
| Polarization/Connection | 0 V / CCP |
| Frequency range (±1 dB) | 5 Hz to 10 kHz |
| Frequency range (±2 dB) | 3.15 Hz to 20 kHz |
| Dynamic range lower limit with GRAS preamplifier | 17 dB(A) |
| Dynamic range upper limit with GRAS preamplifier | 138 dB |
| Set sensitivity @ 250 Hz (±1.5 dB) | 50 mV/Pa |
| Set sensitivity @ 250 Hz (±1.5 dB) | -26 dB re 1V/Pa |
| Output impedance | < 50 Ω |
| Output Voltage Swing, min. @ 24-28 V CCP voltage supply | 8 Vp |
| Power supply min. to max. | 2 to 20 mA |
| DC bias voltage, typ. | 12 V |
| Microphone venting | Rear |
| IEC 61094-4 Designation | WS2F |
| Temperature range, operation | -30 to 85 °C / -22 to 185* °F |
| Temperature range, storage | -40 to 85 °C / -40 to 185 °F |
| Temperature coefficient @250 Hz | -0.01 dB/°C / -0.006 dB/°F |
| Static pressure coefficient @250 Hz | -0.007 dB/kPa |
| Humidity range non condensing | 0 to 90 % RH |
| Humidity coefficient @250 Hz | -0.001 dB/% RH |
| Influence of axial vibration @1 m/s² | 66 dB re 20 µPa |
| TEDS UDID (IEEE 1451.4) | I27-0-0-0U |
| Connector type | BNC |
| Weight | 33 g / 1.164 oz |
Specifications from the official GRAS product sheet. Please refer to the attached datasheet for full details.
