Audiometric Earphones
DD45
Audiometric Earphones
#8010876
Features
•RoHS compatible
•Easy installation
•10 ohm receiver
•Economical
•Reliable
•High quality
•Well built
DD45 Audiometric Earphones
•Engineered to match the performance and function of the most popular
earphones available for audiological testing in today’s marketplace.
•The DD45 air transducer is manufactured to the highest quality standards
and is a more economical alternative.
•RadioEar has an extensive history of successfully serving audiometer
manufacturers and service providers. We recognize the critical importance
these devices play for our customers.
•The DD45 Audiometric Earphones and all of the accessories are
manufactured for RadioEar.
•These earphones are fully supported by RadioEar, and receive the same
focused attention and personal service that we provide our customers for
bone transducers, headbands and cords.
RadioEar | 10393 West 70th Street Eden Pairie | Minnesota 55344 | USA | www.radioear.us
DD45
Technical Specifications
dB
DD45 Measured on a IEC60318-1 artificial ear
DD45 Measured on a IEC60318-3 coupler
dB
120
115
115
110
100
105
105
100
100
95
95
Hz
90
100 10008000
90
Hz
100 10008000
Graph 2 : Coupler
Graph 1 : Artificial Ear
The DD45 is a Supra Aural earphone that meets all of the requirements of ANSI S3.6 – 2010 and ISO389-1 section 4.3.
The DD45 conforms to all of the characteristics found in section 9.1.1. When using a 318-1 artificial ear the standard
allow for calibration using the RETSPLs found in table 5. Section 9.1.2 requires that for earphones not listed in table
5 valid RETSPLs will be provided. These RETSPLs were developed in accordance with ISO 389-9 by independent
laboratories (PTB and DTU).
Dynamic Receiver 10 ohm
DD45 Pure Tone RETSPL
Standards:
ANSI S3.6-2010; IS0389-1 1998
Earphone Receiver:
Dynamic moving coil, special built for audiometry
Frequency
Hz
Nominal Impedance:
10 ohm
Frequency Response:
100 Hz - 8 kHz
Linearity:
Linear up to 500 mW
Sensitivity:
Typically 106.7 dB SPL re. 20 µPa output with
1 mW input, f=1 kHz
Harmonic Distortion:
Below 1% at 120 db SPL, f=kHz
Cable Connector:
2 terminals with 4 mm holes and 2 mm screw
Weight Complete:
59 gram (2 oz)
Environmental:
ISO 389-1
ANSI S3.6
Averaged
PTB – DDTU Report
Artificial ear
IEC 60318-1
dB SPL
6cc Coupler
IEC 60318-3/NBS 9A
dB SPL
125
45.0
47.5
160
38.5
40.5
200
32.5
33.51
250
27.0
27.0
315
22.0
22.51
400
17.0
17.51
500
13.5
13.0
630
10.5
9.01
750
9.0
6.5
800
8.5
6.51
1
•RoHS compatible
1000
7.5
6.0
•Lead and nickel-free
1250
7.5
7.01
•Bio compatible
1500
7.5
8.0
1600
8.0
8.01
Accessories
Dimensions
•Contra-Lateral Headband,
item #8010890
•Cord 2 m, item #8010822
24.5
21.9
9.5
2000
9.0
8.0
2500
10.5
8.01
Ø51
3000
11.5
8.0
Ø43.1
3150
11.5
8.01
34.9
4000
12.0
9.0
5000
11.0
13.01
6000
16.0
20.5
6300
21.0
19.01
8000
15.5
12.0
•Cord 5 m, item #8107103
•Ear cushions:
• Red/blue (set), item #8107611
• Black (pc), item #8010894
1
2 mm screws
RadioEar | 10393 West 70th Street Eden Pairie | Minnesota 55344 | USA | www.radioear.us
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