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AC40 RETSPL-HL Tabel
Transducer
DD45
10 Ω
Impedance
Coupler
6ccm
RETSPL
Speech
22
Speech Equ.FF.
3.5
Speech Non-linear
22
Speech noise
27
Speech noise Equ.FF.
3.5
Speech noise Non-linear
27
White noise in speech
22.5
DD45 (G
-G
) PTB-DTU report 2009-2010.
F
C
TDH39 (G
-G
) IEC60645-2 1997.
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.
Sweden Speech level STAF 1996 and IEC60645-2 1997 (acoustical linear weighting)
Sweden Speech Equivalent free field level (G
Sweden Speech Not linear level 1 kHz RETSPL (DD45-TDH39-HDA200-HDA300) and EAR 3A – IP30 – CIR22/33 - B71- B81 STAF
1996 and IEC60645-2 1997 (no weighting)
Transducer
DD45
10 Ω
Impedance
Coupler
6ccm
Max HL
Speech
108
Speech Equ.FF.
115
Speech Non-linear
104
Speech noise
93
Speech noise Equ.FF.
115
Speech noise Non-linear
94
White noise in speech
95
Sweden Speech RETSPL
TDH39
HDA280
HDA200
10 Ω
37 Ω
40 Ω
6ccm
6ccm
Artificial ear
Artificial ear
RETSPL
RETSPL
RETSPL
22
20
20
0.5
6.5
3.5
22
7.5
5.5
27
20
20
0.5
6.5
3.5
27
7.5
5.5
22.5
22.5
22.5
-G
) from IEC60645-2 1997 (acoustical equivalent sensitivity weighting)
F
C
Sweden Speech max HL
TDH39
HDA280
HDA200
10 Ω
37 Ω
40 Ω
6ccm
6ccm
Artificial ear
Artificial ear
Max HL
Max HL
Max HL
108
100
90
120
110
100
105
120
110
93
95
85
115
105
95
95
120
105
95
95
90
DD65 v2
DD450
HDA300
EAR3A
10 Ω
23 Ω
40 Ω
Artificial
Artificial
ear
ear
RETSPL
RETSPL
RETSPL
RETSPL
20
20
20
1,5
3,5
1
4,5
5,5
2
20
20
20
1,5
3,5
1
4,5
5,5
2
22,5
22,5
22.5
DD65 v2
DD450
HDA300
EAR3A
10 Ω
23 Ω
40 Ω
Artificial
Artificial
ear
ear
Max HL
Max HL
Max HL
Max HL
95
90
95
110
100
110
110
110
120
90
85
90
100
95
110
105
105
120
95
90
95
IP30
EAR5A
B71
10 Ω
10 Ω
10 Ω
10 Ω
2ccm
2ccm
2ccm
Mastoid
RETSPL
RETSPL
RETFL
21
21
21
55
26
26
26
55
22.5
22.5
22.5
57.5
IP30
EAR5A
CIR22/33
10 Ω
10 Ω
10 Ω
68 Ω
2ccm
2ccm
2ccm
2ccm
Max HL
Max HL
Max HL
99
99
99
89
84
84
84
84
85
85
85
85
B81
12.5 Ω
Mastoid
RETFL
55
55
57.5
B71
B81
10 Ω
12.5 Ω
Mastoid
Mastoid
Max HL
Max HL
60
60
50
50
55
60
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