Operation Manual MA 41
8100456 Rev.9
59
01/16
Calibration values and Max Levels: Headphone HDA 300
Ear simulator IEC60318-1 with adapter, Force 8.8 N ± 0.5 N, ANSI and IEC
Frequency
[Hz]
Tone
RETSPL
[dB
SPL
]
NBN RETSPL
[dB
SPL
]
Max Tone
[dB
HL
]
Max NBN
[dB
HL
]
125
27.0
31.0
115
80
250
20.0
24.0
120
90
500
8.0
12.0
120
100
750
4.5
9.5
120
100
1000
2.0
8.0
120
105
1500
3.0
9.0
120
105
2000
0.0
6.0
120
105
3000
-3.0
3.0
120
110
4000
-0.5
4.5
120
110
6000
21.0
26.0
110
95
8000
23.0
28.0
110
95
9000
27.5
32.5
100
90
10000
18.0
23.0
105
95
11200
22.0
27.0
105
90
12500
27.0
32.0
100
85
14000
33.5
38.5
90
75
16000
45.5
50.5
75
60
18000*
83.0
88.0
35
20
20000*
105.0
110.0
10
0
*Calibration values for 18 kHz and 20 kHz are not covered by the standard ISO389-5 and defined
by MAICO Diagnostics GmbH
Signal
IEC60645-2
RETSPL
IEC Max Level
[dB
HL
]
ANSI S3.6
RETSPL
ANSI Max
Level
[dB
HL
]
Speech
20.0
95
18.0
100
SN
20.0
90
18.0
95
WN
0.0
115
0.0
115
Содержание MA 41
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