41
Insert Masking Earpiece
Calibration method:
With 2cc coupler compliant with
IEC
126
Transducers
Types and reference levels:
DD45: ISO 389-1, Table 2
E-5A: ISO 389-2, Table 1
B-71: ISO 389-3, Table 1
Static headband force:
Headphones: 4.5N
Bone
vibrator:
5.4N
Bone vibrator calibrated:
For mastoid placement
Sound attenuation
characteristics:
ISO8253-1, Table 3
Airborne sound from bone
vibrator:
See Br. J. Audiol. 1980, P73-75
Environmental
Operating temperature:
+15°C to +35°C
Operating humidity:
30% to 90% (non-condensing)
Atmospheric pressure:
700 hPa to 1060 hPa
Input / Output
Power input:
2.5mm barrel-type socket
Mic inputs impedance:
2500 Ohms
Mic inputs connection:
Mono 3.5mm Jack socket
Line input impedance:
6800 Ohms
Line in/out connection:
Stereo 3.5mm Jack sockets