Callisto RETSPL-HL Tabel
Transducer
Impedance
Coupler
RETSPL
Speech
Speech Equ.FF.
Speech Non-linear
Speech noise
Speech noise Equ.FF.
Speech noise Non-linear
DD45 (G
-G
) PTB-DTU report 2009-2010.
F
C
TDH39 (G
-G
) IEC60645-2 1997.
F
C
DD65V2 (GF-GC) PTB-AAU report
DD450 (G
-G
) ANSI S3.6 2018 and ISO 389-8 2004.
F
C
HDA300 (G
-G
) PTB report 2013.
F
C
IEC Speech level IEC60645-2 1997 (acoustical linear weighting).
IEC Speech Equivalent free field level (G
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).
Transducer
Impedance
Coupler
Speech
Speech Equ.FF.
Speech Non-linear
Speech noise
Speech noise Equ.FF.
Speech noise Non-linear
White noise in speech
IEC Speech RETSPL
DD45
TDH39
DD65V2
10 Ω
10 Ω
10 Ω
6ccm
6ccm
Artificial ear
RETSPL
RETSPL
20.0
20.0
20
3.5
0.5
1.5
6.0
7.0
4.5
20.0
20.0
20
3.5
0.5
1.5
6.0
7.0
4.5
2018.
-G
) from IEC60645-2 1997 (acoustical equivalent sensitivity
F
C
IEC Speech max HL
DD45
TDH39
DD65V2
10 Ω
10 Ω
10 Ω
6ccm
6ccm
Artificial ear
Max HL
Max HL
Max HL
100
100
85
110
110
105
115
110
100
95
95
80
105
110
95
110
105
100
95
95
90
HDA200
HDA300
EAR3A
40 Ω
23 Ω
10 Ω
Artificial ear
Artificial ear
2ccm
RETSPL
RETSPL
RETSPL
20.0
20.0
3.5
1.0
5.5
2.0
20.0
20.0
20.0
3.5
1.0
5.5
2.0
20.0
HDA200
HDA300
EAR3A
40 Ω
23 Ω
Artificial ear
Artificial ear
Max HL
Max HL
Max HL
85
90
95
105
105
115
80
85
90
105
100
115
85
90
IP30
EAR5A
10 Ω
10 Ω
2ccm
2ccm
Mastoid
RETSPL
RETSPL
RETFL
20.0
20.0
20.0
20.0
IP30
EAR5A
10 Ω
10 Ω
10 Ω
2ccm
2ccm
2ccm
Mastoid
Max HL
Max HL
Max HL
95
95
100
90
90
90
85
85
85
B71
B81
10 Ω
12.5 Ω
Mastoid
RETFL
55.0
55.0
55.0
55.0
B71
B81
10 Ω
12.5 Ω
Mastoid
Max HL
60
60
50
50
55
60