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AC40 RETSPL-HL Tabel
5.2 Maximum hearing level settings provided at each test frequency
Transducer
DD45
10 Ω
Impedance
Coupler
6ccm
RETSPL
Speech
18.5
Speech Equ.FF.
18.5
Speech Non-linear
6
Speech noise
18.5
Speech noise Equ.FF.
18.5
Speech noise Non-linear
6
White noise in speech
21
DD45 (G
-G
) PTB-DTU report 2009-2010.
F
C
TDH39 (G
-G
) ANSI S3.6 2010.
F
C
HDA280 (G
-G
) PTB report 2004
F
C
HDA200 (G
-G
) ANSI S3.6 2010 and ISO 389-8 2004.
F
C
HDA300 (G
-G
) PTB report 2013.
F
C
DD450 (GF-GC) ANSI S3.6 2018 and ISO 389-8 2004.
ANSI Speech level 12.5 dB + 1 kHz RETSPL ANSI S3.6 2010 (acoustical linear weighting)
ANSI Speech Equivalent free field level 12.5 dB + 1 kHz RETSPL – (G
weighting)
ANSI Speech Not linear level 1 kHz RETSPL ANSI S3.6 2010 (DD45-TDH39-HDA200-HDA300) and EAR 3A –IP30-CIR22/33- B71-
B81 12.5 dB + 1 kHz RETSPL ANSI S3.6 2010 (no weighting)
Transducer
DD45
10 Ω
Impedance
Coupler
6ccm
Max HL
Speech
110
Speech Equ.FF.
100
Speech Non-linear
120
Speech noise
100
Speech noise Equ.FF.
100
Speech noise Non-linear
115
White noise in speech
95
ANSI Speech RETSPL
TDH39
HDA280
HDA200
10 Ω
37 Ω
40 Ω
6ccm
6ccm
Artificial ear
Artificial ear
RETSPL
RETSPL
RETSPL
19.5
20
19
15.5
21.5
18.5
7
7.5
5.5
19.5
20
19
15.5
21.5
18.5
7
7.5
5.5
22
22.5
21.5
ANSI Speech max HL
TDH39
HDA280
HDA200
10 Ω
37 Ω
40 Ω
6ccm
6ccm
Artificial ear
Artificial ear
Max HL
Max HL
Max HL
110
100
90
105
95
85
120
120
110
100
95
85
100
90
80
115
120
105
95
95
90
DD65 v2
DD450
HDA300
EAR3A
10 Ω
23 Ω
40 Ω
Artificial
Artificial
ear
ear
RETSPL
RETSPL
RETSPL
RETSPL
17
19
14.5
16,5
18,5
16
4,5
5,5
2
17
19
14.5
16,5
18,5
16
4,5
5,5
2
19,5
21,5
17
-G
) from ANSI S3.6 2010(acoustical equivalent sensitivity
F
C
DD65 v2
DD450
HDA300
10 Ω
23 Ω
40 Ω
Artificial ear
Artificial
ear
Max HL
Max HL
Max HL
100
90
100
95
85
95
110
110
120
95
85
95
90
80
95
105
105
120
95
90
100
IP30
EAR5A
B71
10 Ω
10 Ω
10 Ω
10 Ω
2ccm
2ccm
2ccm
Mastoid
RETSPL
RETSPL
RETFL
12.5
12.5
12.5
55
12.5
12.5
12.5
55
15
15
15
57.5
EAR3A
IP30
EAR5A
B71
10 Ω
10 Ω
10 Ω
10 Ω
2ccm
2ccm
2ccm
Mastoid
Max HL
Max HL
Max HL
Max HL
110
110
110
60
110
110
100
50
95
95
95
55
B81
12.5 Ω
Mastoid
RETFL
55
55
57.5
B81
12.5 Ω
Mastoid
Max HL
60
50
60
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