Sound attenuation values for earphones
5000 29 41 45
6000 -
6300 26 42 45
8000 24 43 44 26.2
ISO 4869-1:1994
Data obtained from manufacturer’s data sheet.
Outputs
AC: 2 x 2 mono jacks, 6.3 mm (1/4 inch)
BC: 1 x mono jack, 6.3 mm (1/4 inch)
SF power output: 3 x terminals,
3 x 40W peak, 8 Ω load
SF line output: 2 x 1.6Vrms,
External inputs
CD/Analog line in:
0.2 to 2.0 Vrms, 10 kΩ, 1 stereo 3.5 mm (1/8 inch) jack
Talk Back microphone: • Electret microphone
• Input voltage: 0.002 to 0.02 Vrms
• Input resistance: 2.21 kΩ.
• 3.5 mm (1/8 inch) jack
USB 2.0 hub: • with 3 powered USB ports
24V DC power supply: • DC power, 2.5 mm
Stimulus presentation
Normal: The signal is presented when the Stimulus Presentation button is activated.
Continuous ON: The signal is interrupted when the Stimulus Presentation button is activated.
Pulse: The signal is pulsed.
Pulse duration: 200ms on and 200ms off configurable
Bone oscillator
Bone oscillator output
The maximum speech output level from the bone oscillator depends on the actual sensitivity of the vibrator. The actual
maximum output is therefore determined at the time of calibration. The actual maximum output level may be determ-
ined by the operator by simply increasing the output level until the attenuator setting no longer increases.
26 Otometrics - AURICAL Aud
17 Technical specifications
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