Date
Page
12-Aug-2021
1 / 10
CN
OLE WOLFF
www.owolff.com
Revision:00
SPECIFICATION
P/N: OWR-1026T-32C
PRELIMINARY SPECIFICATION
Receiver
Part Number
OWR-1026T-32C
This item was compliance with the following requirements:
1. RoHS directive
2. REACH
Note
Customer P/N
Prepared
Signature
/ Date
Ole Wolff
Checked
Allen Wang
2021.08.12
Approved
Nathan Chen
2021.08.12
Confirmation
Customer
Signature
/ Date
REVISION NOTES:
Date
Rev.
2021.08.12
00
OLE WOLFF
ELEKTRONIK A/S
Roedengvej 25
4180 Soroe
Denmark
TEL: +45 57833830
FAX: +45 57820019
Description of Revision
Initial Release
OLE WOLFF
ELECTRONICS INC.
1525 McCarthy Blvd,
Suite 1093
Milpitas, Ca 95035
USA
TEL : +1 408 888 8413
OLEWOLFF
ELEKTRONIK GmbH
Schulstrasse 15A. DE-25451
Quickborn.
Germany
OLEWOLFF
ELECTRONICS
3 Bedford Street, Woburn,
Bedfordshire MK17 9QB,
ENGLAND
TEL: +49 (0) 4106 765900
FAX: +49 (0) 4106 627297
TEL: +44 (0) 1525 290755
FAX: +44 (0) 1525 290855
OLE WOLFF
ELEKTRONIK
Yliopistonkatu 26
(P.O.BOX 257)
FI-40101 Jyväskylä
Finland
TEL: +358 14 338 3050
FAX: +358 14 338 3059
OLE WOLFF (ASIA) LTD.
Unit B, 19/F.,
Bold Win Ind. Bldg.,
No. 16-18 Wah Sing St.,
Kwai Chung, N.T., H.K.
OLE WOLFF LTD.
5 Floor, Block G, WenTao
Industrial Park, YingRenShi,
Bao'an District, Shenzhen City,
Guangdong Province,PRC.
TEL: +852 2424 3274
FAX: +852 2424 2219
TEL: +86 755 82612542
TEL: +86 755 26406156
Date
Page
CN
12-Aug-2021
2 / 10
OLE WOLFF
www.owolff.com
Revision:00
SPECIFICATION
P/N: OWR-1026T-32C
1. SCOPE
THIS SPECIFICATION IS APPLIED FOR A DYNAMIC RECEIVER FOR EARPHONE.
2. TEST CONDITIONS
TEMPERATURE : 24°C 27°C
HUMIDITY : 65% +/-10% (R.H.)
ATMOSPHERE : 860 1060 hPa
3.
GENERAL REQUIREMENTS
OPERATING TEMPERATURE RANGE: -25° C 60° C
STORAGE TEMPERATUR RANGE: -25° C 60° C
4. MECANICAL LAYOUT & DIMENSIONS
DIMENSIONS : SHOWN IN FIGURE.5
NET WEIGHT: 0.41g± 10%
5. ELECTRICAL AND ACOUSTICAL CHARACTERISTICS
1
2
3
4
5
6
7
8
9
Impedance
on
60318-4
IEC
32Ω ± 15% at 3KHz with 0.179V/1mW
Sound Pressure Level on 125.5±3dB at 1000Hz with input 0.179V/1mW (0dB=20μPa)
IEC 60318-4
Measure setup as shown in Fig.1
Resonance Frequency on
600Hz± 20% with input 0.179V/1mW(Temperature 24°C 27°C, humidity55-65%)
IEC 60318-4
Frequency Response on
Typical performance as shown in Fig.6. (Test input 0.179V/1mW)
IEC 60318-4
Total Harmonic
Distortion on IEC 60318-4
Sound Pressure Level in
free field
Resonance frequency in
free field
Frequency response in
free field
Total Harmonic
Distortion in free field
THD as shown in Fig.6 (Test input 0.179V/1mW)
79.5dB at 1000Hz with input 0.179V/1mW/10mm (0dB=20μPa) (for reference)
200Hz with input 0.179V/1mW(Temperature 24°C 27°C, humidity55-65%)
(for reference)
Typical performance as shown in Fig.7. (Test input 0.179V/1mW/10mm)
(for reference)
THD as shown in Fig.7 (Test input 0.179V/1mW/10mm) (for reference)
10 Input Power
(Nom./Max.): 2mW /TBD
11 Rub & Buzz
Speaker must be free of audible noise at 0.253v sine wave between
50Hz-10KHz
OLE WOLFF
ELEKTRONIK A/S
Roedengvej 25
4180 Soroe
Denmark
TEL: +45 57833830
FAX: +45 57820019
OLE WOLFF
ELECTRONICS INC.
1525 McCarthy Blvd,
Suite 1093
Milpitas, Ca 95035
USA
TEL : +1 408 888 8413
OLEWOLFF
ELEKTRONIK GmbH
Schulstrasse 15A. DE-25451
Quickborn.
Germany
OLEWOLFF
ELECTRONICS
3 Bedford Street, Woburn,
Bedfordshire MK17 9QB,
ENGLAND
TEL: +49 (0) 4106 765900
FAX: +49 (0) 4106 627297
TEL: +44 (0) 1525 290755
FAX: +44 (0) 1525 290855
OLE WOLFF
ELEKTRONIK
Yliopistonkatu 26
(P.O.BOX 257)
FI-40101 Jyväskylä
Finland
TEL: +358 14 338 3050
FAX: +358 14 338 3059
OLE WOLFF (ASIA) LTD.
Unit B, 19/F.,
Bold Win Ind. Bldg.,
No. 16-18 Wah Sing St.,
Kwai Chung, N.T., H.K.
OLE WOLFF LTD.
5 Floor, Block G, WenTao
Industrial Park, YingRenShi,
Bao'an District, Shenzhen City,
Guangdong Province,PRC.
TEL: +852 2424 3274
FAX: +852 2424 2219
TEL: +86 755 82612542
TEL: +86 755 26406156
Date
Page
CN
12-Aug-2021
3 / 10
SPECIFICATION
P/N: OWR-1026T-32C
OLE WOLFF
www.owolff.com
Revision:00
6.RELIABILITY TEST REQUIREMENTS
Sensitivity difference at 1000Hz shall be within ±3dB from initial value after each test. The
measurement shall be done after minimum 1hour and maximum 2 hours with conditioning of 24° C
~27° C.
No.
ITEMS
1
HIGH TEMPERATURE TEST STORAGE
2
LOW TEMPERATURE TEST STORAGE
3
HIGH TEMPERATURE
HUMIDITY TEST
4
5
6
7
8
OLE WOLFF
ELEKTRONIK A/S
Roedengvej 25
4180 Soroe
Denmark
TEL: +45 57833830
FAX: +45 57820019
TEST CONDITION
DROP TEST
SHORT TERM MAX INPUT TEST
LONG TERM MAX INPUT TEST
OLE WOLFF
ELECTRONICS INC.
1525 McCarthy Blvd,
Suite 1093
Milpitas, Ca 95035
USA
TEL : +1 408 888 8413
60± 3° C
Duration
96hrs
Temperature
-25± 3° C
Duration
96hrs
Temperature
40±3° C
Humidity
90%--95%(RH)
Duration
96hrs
Height
With protector grill 0.75m to
concrete
Total times
POWER TEST
10 times
Temperature
-25±3° C ↔60±3° C
Duration
2hours, 5mins, 2hours
Cycles
5 cycles
Test signal and
Temperature
Pink noise,20Hz-20KHz,Crest
factor of2(6dB voltage) /25° C
Test input power
TBD
Cycles
1sec On, 1min Off, 60cycles
Test signal and
Temperature
Pink noise,20Hz-20KHz,Crest
factor of2(6dB voltage)/25° C
Test input power
TBD
Cycles
1min On/ 2min Off, 10 cycles
Test signal and
Temperature
Pink Noise,20Hz-20KHz,Crest
factor of2(6dB voltage) / 25° C
Test input power
2mW/0.253Vrms
Duration
96hrs
TEMPERATURE CYCLE TEST
RATED
Temperature
OLEWOLFF
ELEKTRONIK GmbH
Schulstrasse 15A. DE-25451
Quickborn.
Germany
OLEWOLFF
ELECTRONICS
3 Bedford Street, Woburn,
Bedfordshire MK17 9QB,
ENGLAND
TEL: +49 (0) 4106 765900
FAX: +49 (0) 4106 627297
TEL: +44 (0) 1525 290755
FAX: +44 (0) 1525 290855
OLE WOLFF
ELEKTRONIK
Yliopistonkatu 26
(P.O.BOX 257)
FI-40101 Jyväskylä
Finland
TEL: +358 14 338 3050
FAX: +358 14 338 3059
OLE WOLFF (ASIA) LTD.
Unit B, 19/F.,
Bold Win Ind. Bldg.,
No. 16-18 Wah Sing St.,
Kwai Chung, N.T., H.K.
OLE WOLFF LTD.
5 Floor, Block G, WenTao
Industrial Park, YingRenShi,
Bao'an District, Shenzhen City,
Guangdong Province,PRC.
TEL: +852 2424 3274
FAX: +852 2424 2219
TEL: +86 755 82612542
TEL: +86 755 26406156
Date
Page
CN
12-Aug-2021
4 / 10
SPECIFICATION
P/N: OWR-1026T-32C
OLE WOLFF
www.owolff.com
Revision:00
7.TEST SET UP AND TEST JIG FOR FREE FIELD
7.1 MEASUREMENT CIRCUIT FOR DYNAMIC SPEAKER (Fig.1)
NO
1
2
3
4
5
6
EQUIPMENT
DUT
Adapter
Audio Analyzer
Audio Amplifier
Artificial ear
Microphone supplier
REMARKS
Receiver
As shown on Fig.4
LISTEN SOUNDCHECK
LEM DPA300
GRAS 43AC-S5
GRAS 12AX
7.2 IEC 60318-4 TEST JIG (Fig.2)
OLE WOLFF
ELEKTRONIK A/S
Roedengvej 25
4180 Soroe
Denmark
TEL: +45 57833830
FAX: +45 57820019
OLE WOLFF
ELECTRONICS INC.
1525 McCarthy Blvd,
Suite 1093
Milpitas, Ca 95035
USA
TEL : +1 408 888 8413
OLEWOLFF
ELEKTRONIK GmbH
Schulstrasse 15A. DE-25451
Quickborn.
Germany
OLEWOLFF
ELECTRONICS
3 Bedford Street, Woburn,
Bedfordshire MK17 9QB,
ENGLAND
TEL: +49 (0) 4106 765900
FAX: +49 (0) 4106 627297
TEL: +44 (0) 1525 290755
FAX: +44 (0) 1525 290855
OLE WOLFF
ELEKTRONIK
Yliopistonkatu 26
(P.O.BOX 257)
FI-40101 Jyväskylä
Finland
TEL: +358 14 338 3050
FAX: +358 14 338 3059
OLE WOLFF (ASIA) LTD.
Unit B, 19/F.,
Bold Win Ind. Bldg.,
No. 16-18 Wah Sing St.,
Kwai Chung, N.T., H.K.
OLE WOLFF LTD.
5 Floor, Block G, WenTao
Industrial Park, YingRenShi,
Bao'an District, Shenzhen City,
Guangdong Province,PRC.
TEL: +852 2424 3274
FAX: +852 2424 2219
TEL: +86 755 82612542
TEL: +86 755 26406156
Date
Page
CN
12-Aug-2021
5 / 10
OLE WOLFF
www.owolff.com
Revision:00
SPECIFICATION
P/N: OWR-1026T-32C
7.3 FREE FIELD MEASUREMENT CIRCUIT FOR DYNAMIC SPEAKER(Fig.3)
NO
1
2
3
4
EQUIPMENT
UNIT UNDER TEST
TEST BOX
AUDIO POWER AMPLIFIER
ANALYZER
REMARKS
RECEIVER
OLE WOLFF STANDARD BOX
LEM DPA300
LISTEN SOUNDCHECK
7.4 FREE FIELD TEST JIG(Fig.4)
OLE WOLFF
ELEKTRONIK A/S
Roedengvej 25
4180 Soroe
Denmark
TEL: +45 57833830
FAX: +45 57820019
OLE WOLFF
ELECTRONICS INC.
1525 McCarthy Blvd,
Suite 1093
Milpitas, Ca 95035
USA
TEL : +1 408 888 8413
OLEWOLFF
ELEKTRONIK GmbH
Schulstrasse 15A. DE-25451
Quickborn.
Germany
OLEWOLFF
ELECTRONICS
3 Bedford Street, Woburn,
Bedfordshire MK17 9QB,
ENGLAND
TEL: +49 (0) 4106 765900
FAX: +49 (0) 4106 627297
TEL: +44 (0) 1525 290755
FAX: +44 (0) 1525 290855
OLE WOLFF
ELEKTRONIK
Yliopistonkatu 26
(P.O.BOX 257)
FI-40101 Jyväskylä
Finland
TEL: +358 14 338 3050
FAX: +358 14 338 3059
OLE WOLFF (ASIA) LTD.
Unit B, 19/F.,
Bold Win Ind. Bldg.,
No. 16-18 Wah Sing St.,
Kwai Chung, N.T., H.K.
OLE WOLFF LTD.
5 Floor, Block G, WenTao
Industrial Park, YingRenShi,
Bao'an District, Shenzhen City,
Guangdong Province,PRC.
TEL: +852 2424 3274
FAX: +852 2424 2219
TEL: +86 755 82612542
TEL: +86 755 26406156
Date
Page
CN
12-Aug-2021
6 / 10
OLE WOLFF
www.owolff.com
Revision:00
SPECIFICATION
P/N: OWR-1026T-32C
7.5 FREE FIELD TEST BOX: OWBOX (Fig.5)
OLE WOLFF
ELEKTRONIK A/S
Roedengvej 25
4180 Soroe
Denmark
TEL: +45 57833830
FAX: +45 57820019
NO.
1
2
3
4
5
EQUIPMENT
TEST JIG
MICROPHONE
MICROPHONE HOLDER
DAMPING MATERIAL
BOX
6
TEST
DISTANCE MEASURED
FROM
FRONT OF SPEAKER
1cm
FRAME TO FRONT OF TEST
MICROPHONE
OLE WOLFF
ELECTRONICS INC.
1525 McCarthy Blvd,
Suite 1093
Milpitas, Ca 95035
USA
TEL : +1 408 888 8413
OLEWOLFF
ELEKTRONIK GmbH
Schulstrasse 15A. DE-25451
Quickborn.
Germany
OLEWOLFF
ELECTRONICS
3 Bedford Street, Woburn,
Bedfordshire MK17 9QB,
ENGLAND
TEL: +49 (0) 4106 765900
FAX: +49 (0) 4106 627297
TEL: +44 (0) 1525 290755
FAX: +44 (0) 1525 290855
REMARKS
Fig.2
1/2 INCH MICROPHONE (46AF)
FOAM RUBBER
WOOD
OLE WOLFF
ELEKTRONIK
Yliopistonkatu 26
(P.O.BOX 257)
FI-40101 Jyväskylä
Finland
TEL: +358 14 338 3050
FAX: +358 14 338 3059
OLE WOLFF (ASIA) LTD.
Unit B, 19/F.,
Bold Win Ind. Bldg.,
No. 16-18 Wah Sing St.,
Kwai Chung, N.T., H.K.
OLE WOLFF LTD.
5 Floor, Block G, WenTao
Industrial Park, YingRenShi,
Bao'an District, Shenzhen City,
Guangdong Province,PRC.
TEL: +852 2424 3274
FAX: +852 2424 2219
TEL: +86 755 82612542
TEL: +86 755 26406156
Date
Page
CN
12-Aug-2021
7 / 10
SPECIFICATION
P/N: OWR-1026T-32C
OLE WOLFF
www.owolff.com
Revision:00
8.STANDARD FREQUENCY RESPONSE CURVE & STANDARD THD
8.1 Input 0.179V 1/6oct on IEC 60318-4 coupler. Soundcheck stimulus step size 8 min cycles and 5ms min
duration.The following tolerances are offset values. Limit is absolute value based on the golden sample
offset.(Fig.6).
OLE WOLFF
ELEKTRONIK A/S
Roedengvej 25
4180 Soroe
Denmark
TEL: +45 57833830
FAX: +45 57820019
OLE WOLFF
ELECTRONICS INC.
1525 McCarthy Blvd,
Suite 1093
Milpitas, Ca 95035
USA
TEL : +1 408 888 8413
OLEWOLFF
ELEKTRONIK GmbH
Schulstrasse 15A. DE-25451
Quickborn.
Germany
OLEWOLFF
ELECTRONICS
3 Bedford Street, Woburn,
Bedfordshire MK17 9QB,
ENGLAND
TEL: +49 (0) 4106 765900
FAX: +49 (0) 4106 627297
TEL: +44 (0) 1525 290755
FAX: +44 (0) 1525 290855
OLE WOLFF
ELEKTRONIK
Yliopistonkatu 26
(P.O.BOX 257)
FI-40101 Jyväskylä
Finland
TEL: +358 14 338 3050
FAX: +358 14 338 3059
OLE WOLFF (ASIA) LTD.
Unit B, 19/F.,
Bold Win Ind. Bldg.,
No. 16-18 Wah Sing St.,
Kwai Chung, N.T., H.K.
OLE WOLFF LTD.
5 Floor, Block G, WenTao
Industrial Park, YingRenShi,
Bao'an District, Shenzhen City,
Guangdong Province,PRC.
TEL: +852 2424 3274
FAX: +852 2424 2219
TEL: +86 755 82612542
TEL: +86 755 26406156
Date
Page
CN
12-Aug-2021
8 / 10
SPECIFICATION
P/N: OWR-1026T-32C
OLE WOLFF
www.owolff.com
Revision:00
8.2 Test input 0.179V, 10mm 1/24oct in free filed(Fig.7).
OLE WOLFF
ELEKTRONIK A/S
Roedengvej 25
4180 Soroe
Denmark
TEL: +45 57833830
FAX: +45 57820019
OLE WOLFF
ELECTRONICS INC.
1525 McCarthy Blvd,
Suite 1093
Milpitas, Ca 95035
USA
TEL : +1 408 888 8413
OLEWOLFF
ELEKTRONIK GmbH
Schulstrasse 15A. DE-25451
Quickborn.
Germany
OLEWOLFF
ELECTRONICS
3 Bedford Street, Woburn,
Bedfordshire MK17 9QB,
ENGLAND
TEL: +49 (0) 4106 765900
FAX: +49 (0) 4106 627297
TEL: +44 (0) 1525 290755
FAX: +44 (0) 1525 290855
OLE WOLFF
ELEKTRONIK
Yliopistonkatu 26
(P.O.BOX 257)
FI-40101 Jyväskylä
Finland
TEL: +358 14 338 3050
FAX: +358 14 338 3059
OLE WOLFF (ASIA) LTD.
Unit B, 19/F.,
Bold Win Ind. Bldg.,
No. 16-18 Wah Sing St.,
Kwai Chung, N.T., H.K.
OLE WOLFF LTD.
5 Floor, Block G, WenTao
Industrial Park, YingRenShi,
Bao'an District, Shenzhen City,
Guangdong Province,PRC.
TEL: +852 2424 3274
FAX: +852 2424 2219
TEL: +86 755 82612542
TEL: +86 755 26406156
Date
Page
CN
12-Aug-2021
9 / 10
SPECIFICATION
P/N: OWR-1026T-32C
OLE WOLFF
www.owolff.com
Revision:00
9.DIMENSION (Fig.8)
Unit: mm
OLE WOLFF
ELEKTRONIK A/S
Roedengvej 25
4180 Soroe
Denmark
TEL: +45 57833830
FAX: +45 57820019
OLE WOLFF
ELECTRONICS INC.
1525 McCarthy Blvd,
Suite 1093
Milpitas, Ca 95035
USA
TEL : +1 408 888 8413
OLEWOLFF
ELEKTRONIK GmbH
Schulstrasse 15A. DE-25451
Quickborn.
Germany
OLEWOLFF
ELECTRONICS
3 Bedford Street, Woburn,
Bedfordshire MK17 9QB,
ENGLAND
TEL: +49 (0) 4106 765900
FAX: +49 (0) 4106 627297
TEL: +44 (0) 1525 290755
FAX: +44 (0) 1525 290855
OLE WOLFF
ELEKTRONIK
Yliopistonkatu 26
(P.O.BOX 257)
FI-40101 Jyväskylä
Finland
TEL: +358 14 338 3050
FAX: +358 14 338 3059
OLE WOLFF (ASIA) LTD.
Unit B, 19/F.,
Bold Win Ind. Bldg.,
No. 16-18 Wah Sing St.,
Kwai Chung, N.T., H.K.
OLE WOLFF LTD.
5 Floor, Block G, WenTao
Industrial Park, YingRenShi,
Bao'an District, Shenzhen City,
Guangdong Province,PRC.
TEL: +852 2424 3274
FAX: +852 2424 2219
TEL: +86 755 82612542
TEL: +86 755 26406156
Date
Page
CN
12-Aug-2021
10 / 10
SPECIFICATION
P/N: OWR-1026T-32C
OLE WOLFF
www.owolff.com
Revision:00
10.Marking
11.Packing
OLE WOLFF
ELEKTRONIK A/S
Roedengvej 25
4180 Soroe
Denmark
TEL: +45 57833830
FAX: +45 57820019
OLE WOLFF
ELECTRONICS INC.
1525 McCarthy Blvd,
Suite 1093
Milpitas, Ca 95035
USA
TEL : +1 408 888 8413
OLEWOLFF
ELEKTRONIK GmbH
Schulstrasse 15A. DE-25451
Quickborn.
Germany
OLEWOLFF
ELECTRONICS
3 Bedford Street, Woburn,
Bedfordshire MK17 9QB,
ENGLAND
TEL: +49 (0) 4106 765900
FAX: +49 (0) 4106 627297
TEL: +44 (0) 1525 290755
FAX: +44 (0) 1525 290855
OLE WOLFF
ELEKTRONIK
Yliopistonkatu 26
(P.O.BOX 257)
FI-40101 Jyväskylä
Finland
TEL: +358 14 338 3050
FAX: +358 14 338 3059
OLE WOLFF (ASIA) LTD.
Unit B, 19/F.,
Bold Win Ind. Bldg.,
No. 16-18 Wah Sing St.,
Kwai Chung, N.T., H.K.
OLE WOLFF LTD.
5 Floor, Block G, WenTao
Industrial Park, YingRenShi,
Bao'an District, Shenzhen City,
Guangdong Province,PRC.
TEL: +852 2424 3274
FAX: +852 2424 2219
TEL: +86 755 82612542
TEL: +86 755 26406156