Technical Specifications; Dimensions And Data For 67Ax - G.R.A.S. 67AX Instruction Manual

Technical Specifications

Dimensions and Data for 67AX

Dimensions
Microphone
Housing
Microphone set height
Without grid
With
Weight
Mounting Plate
Data was collected in a temperature of 23 °C (±3 °C) and in a relative humidity of 60 %
±20 %.
Frequency response for the set
±2.0 dB
±1.0 dB
Nominal sensitivity for the set
at 250 Hz
Polarization voltage
Dynamic range for the set
Upper limit (3 % distortion)
Thermal noise
Temperature
Operation
Storage
Static-pressure coefficient
250 Hz/25 °C
Humidity (non-condensing)
Range
Influence (250 Hz)
Influence of axial vibration equivalent to 1 m/s²
Venting
LI0055 – Revision 25 June 2012
Ø13.2 mm
Ø18.0 mm
8 mm
9.20 mm
15 g
Ø400 mm
3.15 Hz – 20 kHz
5 Hz – 12.5 kHz
12.5 mV/Pa
0 V
146 dB re. 20 μPa
22 dB(A) re. 20 μPa
–30 °C to +70 °C
–40 °C to +85 °C
-0.008 dB / kPa
0 – 100 % RH
<0.1 dB (0 – 100 % RH)
66 dB re. 20μPa
Rear-vented
7