D-0123672-H – 2022/05
Affinity Compact - Instructions for Use - US
Page
63
Speech reference equivalent threshold value for transducer
DD45 (G
F
-G
C
) PTB-DTU report 2009-2010.
TDH39 (G
F
-G
C
) ANSI S3.6 2018.
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.
ANSI Speech level 12.5 dB + 1 kHz RETSPL ANSI S3.6 2018 (acoustical linear weighting).
ANSI Speech Equivalent free field level 12.5 dB + 1 kHz RETSPL - (G
F
-G
C
) from ANSI S3.6 2018 (acoustical equivalent sensitivity
weighting).
ANSI Speech Not linear level 1 kHz RETSPL ANSI S3.6 2018 (DD45, TDH39, DD65V2, DD450, HDA300) and EAR 3A, IP30, B71 and
B81 12.5 dB + 1 kHz RETSPL ANSI S3.6 2018 (no weighting).
ANSI 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
100
90
100
Speech Equ.FF.
100
105
95
85
95
Speech Non-linear
120
120
110
110
120
110
110
60
40
60
50
Speech noise
100
100
95
85
95
Speech noise Equ.FF.
100
100
90
80
95
Speech noise Non-
linear
115
115
105
105
120
110
110
50
40
50
40
White noise in speech
95
95
95
90
100
95
95
55
45
60
50
ANSI 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
18.5
19.5
17
19
14.5
Speech Equ.FF.
18.5
15.5
16.5
18.5
16
Speech Non-linear
6
7
4.5
5.5
2
12.5
12.5
55
63.5
55
63.5
Speech noise
18.5
19.5
17
19
14.5
Speech noise
Equ.FF.
18.5
15.5
16.5
18.5
16
Speech noise Non-
linear
6
7
4.5
5.5
2
12.5
12.5
55
63.5
55
63.5
White noise in
speech
21
22
19.5
21.5
17
15
15
57.5
66
57.5
66