Operation Manual MA 41
8100456 Rev.9
47
01/16
Test Frequencies:
125 Hz – 8,000 Hz
9,000 Hz – 16,000 Hz (upgrade)
Level Step:
5 dB, 2 dB or 1 dB level steps (user
selectable)
Maximum Sound Pressure Level:
AC with earphone DD 45:
- 10 dB
HL
to 120 dB
HL
BC with B 71/B 71W Bone
Conduction Oscillator:
- 10 dB
HL
to 80 dB
HL
Insert earphones IP30:
- 10 dB
HL
... 120 dB
HL
Sound field speaker from Amp:
Tones:
- 10 dB
HL
... 100 dB
HL
Speech:
- 10 dB
HL
... 90 dB
HL
Sound field speaker from MA 41:
(using SP90 Speaker Kit)
:
Tones:
- 10 dB
HL
... 90 dB
HL
Speech:
- 10 dB
HL
... 70 dB
HL
Test Signal:
Pure tone, Pulse tone, Warble tone
Masking Signals:
Narrow Band Noise: 5/12 Octave
filter with the same center frequency
resolution as pure tone
Speech Noise: 125 to 6,000 Hz
falling 12 dB/octave above 1 kHz
(+/-5 dB)
Summary of Contents for MA 41
Page 1: ...Operation Manual MA 41...
Page 2: ......
