
D-0123672-H – 2022/05
Affinity Compact - Instructions for Use - US
Page
64
IEC SPEECH RETSPL
TRANSDUCER
DD45
TDH39
DD65 v2
DD450
HDA300
EAR3A
IP30
B71
B71
B81
B81
Impedance
10 Ω
10 Ω
10 Ω
40 Ω
23 Ω
10 Ω
10 Ω
10 Ω
10 Ω
12.5 Ω
12.5 Ω
COUPLER
6ccm
6ccm
ARTIFICIAL
EAR
ARTIFICIAL
EAR
ARTIFICIAL
EAR
2ccm
2ccm
MASTOID FOREHEAD MASTOID FOREHEAD
RETSPL
RETSPL
RETSPL
RETSPL
RETSPL
RETSPL
RETSPL
RETFL
RETFL
RETFL
RETFL
Speech
20
20
20
20
20
Speech Equ.FF.
3.5
0.5
1.5
3.5
1
Speech Non-linear
6
7
4.5
5.5
2
20
20
55
63.5
55
63.5
Speech noise
20
20
20
20
20
Speech noise Equ.FF.
3.5
0.5
1.5
3.5
1
Speech noise Non-
linear
6
7
4.5
5.5
2
20
20
55
63.5
55
63.5
White noise in speech
22.5
22.5
22.5
22.5
22.5
22.5
22.5
57.5
66
57.5
66
DD45 (G
F
-G
C
) PTB-DTU report 2009-2010.
TDH39 (G
F
-G
C
) IEC60645-2 1997.
DD65V2 (GF-GC) PTB-AAU report 2018
.
DD450 (G
F
-G
C
) ANSI S3.6 2018 and ISO 389-8 2004.
HDA300 (G
F
-G
C
) PTB report 2013.
IEC Speech level IEC60645-2 1997 (acoustical linear weighting).
IEC Speech Equivalent free field level (G
F
-G
C
) from IEC60645-2 1997 (acoustical equivalent sensitivity weighting).
IEC Speech Not linear level 1 kHz RETSPL (DD45, TDH39,
DD65V2, DD450, HDA300) and EAR3A, IP30, B7 and B81 IEC60645-2
1997 (no weighting).
IEC SPEECH MAX. HL
TRANSDUCER
DD45
TDH39
DD65 v2
DD450
HDA300
EAR3A
IP30
B71
B71
B81
B81
IMPEDANCE
10 Ω
10 Ω
10 Ω
40 Ω
23 Ω
10 Ω
10 Ω
10 Ω
10 Ω
12.5 Ω
12.5 Ω
COUPLER
6ccm
6ccm
ARTIFICIAL
EAR
ARTIFICIAL
EAR
ARTIFICIAL
EAR
2ccm
2ccm
MASTOID
FOREHEAD
MASTOID
FOREHEAD
Max. HL
Max. HL
Max. HL
Max. HL
Max. HL
Max. HL
Max. HL
Max. HL
Max. HL
Max. HL
Max. HL
Speech
110
110
95
90
95
Speech Equ.FF.
115
120
110
100
110
Speech Non-linear
120
120
110
110
120
100
100
60
40
60
50
Speech noise
100
100
90
85
90
Speech noise
Equ.FF.
115
115
10
95
110
Speech noise
Non-linear
115
115
105
105
120
90
90
50
40
50
40
White noise in
speech
95
95
95
90
95
85
85
55
45
60
50