Interacoustics AD528 - Reference Equivalent Threshold Values for Transducers & Maximum Hearing Level Settings

D-0121151-B – 2018/11
AD528 - Instructions for Use - EN Page 34
5.1 Reference equivalent threshold values for transducers & Maximum hearing
level settings
Transducer
DD45
DD450
IP30
B71
Impedance
10 Ω
40 Ω
10 Ω
10 Ω
Coupler
6ccm
Artificial ear
2ccm
Mastoid
RETSPL
RETSPL
RETSPL
RETFL
Tone 125 Hz
47.5
30.5
26
Tone 160 Hz
40.5
26
22
Tone 200 Hz
33.5
22
18
Tone 250 Hz
27
18
14
67
Tone 315 Hz
22.5
15.5
12
64
Tone 400 Hz
17.5
13.5
9
61
Tone 500 Hz
13
11
5.5
58
Tone 630 Hz
9
8
4
52.5
Tone 750 Hz
6.5
6
2
48.5
Tone 800 Hz
6.5
6
1.5
47
Tone 1000 Hz
6
5.5
0
42.5
Tone 1250 Hz
7
6
2
39
Tone 1500 Hz
8
5.5
2
36.5
Tone 1600 Hz
8
5.5
2
35.5
Tone 2000 Hz
8
4.5
3
31
Tone 2500 Hz
8
3
5
29.5
Tone 3000 Hz
8
2.5
3.5
30
Tone 3150 Hz
8
4
4
31
Tone 4000 Hz
9
9.5
5.5
35.5
Tone 5000 Hz
13
14
5
40
Tone 6000 Hz
20.5
17
2
40
Tone 6300 Hz
19
17.5
2
40
Tone 8000 Hz
12
17.5
0
40
DD45 6ccm uses IEC60318-3 or NBS 9A coupler and RETSPL comes from ANSI S3.6 2018 / ISO 389-1
2017,
force 4.5N ±0.5N.
DD450 uses IEC60318-1 and RETSPL comes from
ANSI S3.6 – 2018, Force 10N ±0.5N.
IP30 2ccm uses ANSI S3.7-1995 IEC60318-5 coupler (HA-2 with 5mm rigid Tube) and RETSPL comes from
ANSI S3.6 2018 and ISO 389-2 1994.
B71 uses ANSI S3.13 or IEC60318-6 2007 mechanical coupler and RETFL come from ANSI S3.6 2010 and
ISO 389-3 1994. Force 5.4N ±0.5N.