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46AQ 1/2" CCP Random Incidence Standard Microphone Set
46AQ 1/2" CCP Random Incidence Standard Microphone Set
The 46AQ is a 1/2" CCP microphone set for random-incidence measurements.
For our users, data safety translates directly into requests for easier microphone selection, simple system configuration and reduction of measurement errors.
To meet these requirements, we invented the microphone set concept. It is simple, reliable and robust and consists of a microphone cartridge and preamplifier combination, which is calibrated as one unit. This eliminates errors because there is only one sensitivity value to account for and the risk of contaminating the interface is eliminated. Combine this with our unique and proven design and you have the most reliable measurement microphone sets available in the industry today.
Key Specifications
| Polarization/Connection | 0 V / CCP |
| Frequency range (±1 dB) | 12.5 Hz to 8 kHz |
| Frequency range (±2 dB) | 3.15 Hz to 12.5 kHz |
| Frequency range (±3 dB) | 3.15 Hz to 16 kHz |
| Dynamic range lower limit with GRAS preamplifier | 17 dB(A) |
| Dynamic range upper limit with GRAS preamplifier | 138 dB |
| Set sensitivity @ 250 Hz (±2 dB) | 50 mV/Pa |
| Set sensitivity @ 250 Hz (±2 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 |
| Power supply min. to max. (single/balanced) | N/A V |
| DC bias voltage, typ. | 12 V |
| Microphone venting | Rear |
| IEC 61094-4 Designation | WS2D |
| 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 | -0,011 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 | 62 dB re 20 µPa |
| TEDS (IEEE 1451.4) | 27 v. 1.0 |
| 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.
