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I.S. EN 60268-5:2003

Current
Current

The latest, up-to-date edition.

SOUND SYSTEM EQUIPMENT - PART 5: LOUDSPEAKERS
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

01-01-2003

Preview

For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.

Only cited Standards give presumption of conformance to New Approach Directives/Regulations.

FOREWORD
1 Scope
2 Normative references
3 Conditions for measurement
   3.1 General conditions
   3.2 Measuring conditions
4 Test signals
   4.1 General
   4.2 Sinusoidal signal
   4.3 Broadband noise signal
   4.4 Narrow-band noise signal
   4.5 Impulsive signal
5 Acoustical environment
   5.1 General
   5.2 Free-field conditions
   5.3 Half-space free-field conditions
   5.4 Diffuse sound field conditions
   5.5 Simulated free-field conditions
   5.6 Half-space simulated free-field conditions
6 Unwanted acoustical and electrical noise
7 Positioning of loudspeaker and measuring microphone
   7.1 Measuring distance under free-field and half-space
        free-field conditions
   7.2 Positioning of loudspeaker in diffuse field conditions
   7.3 Positioning of loudspeaker and microphone in simulated
        free-field conditions
8 Measuring equipment
9 Accuracy of the acoustical measurement
10 Mounting of loudspeakers
   10.1 Mounting and acoustic loading of drive units
   10.2 Mounting and acoustic loading of a loudspeaker system
11 Standard baffle and measuring enclosures
   11.1 Standard baffle
   11.2 Standard measuring enclosures
12 Preconditioning
13 Type description
   13.1 General
   13.2 Loudspeaker drive units
   13.3 Loudspeaker system
14 Marking of terminals and controls
   14.1 General
   14.2 Positive terminal
15 Reference plane, reference point and reference axis
   15.1 Reference plane - characteristic to be specified
   15.2 Reference point - characteristic to be specified
   15.3 Reference axis - characteristic to be specified
16 Impedance and derivative characteristics
   16.1 Rated impedance - characteristic to be specified
   16.2 Impedance curve
   16.3 Total Q-factor (Q[t])
   16.4 Equivalent air volume of a loudspeaker drive unit
        compliance (v[as])
17 Input voltage
   17.1 Rated noise voltage
   17.2 Short-term maximum input voltage
   17.3 Long-term maximum input voltage
   17.4 Rated sinusoidal voltage
18 Input electrical power
   18.1 Rated noise power - characteristic to be specified
   18.2 Short-term maximum power - characteristic to
        be specified
   18.3 Long-term maximum power - characteristic to be specified
   18.4 Rated sinusoidal power - characteristic to be specified
19 Frequency characteristics
   19.1 Rated frequency range - characteristic to be specified
   19.2 Resonance frequency
   19.3 Tuning frequency of a bass reflex or passive radiator
        loudspeaker system - characteristic to be specified
20 Sound pressure under free-field and half-space free-field
   conditions
   20.1 Sound pressure in a stated frequency band
   20.2 Sound pressure level in a stated frequency
        band - characteristic to be specified
   20.3 Characteristic sensitivity in a stated frequency band
   20.4 Characteristic sensitivity level in a stated frequency
        band - characteristic to be specified
   20.5 Mean sound pressure in a stated frequency band
   20.6 Mean sound pressure level in a stated frequency band -
        characteristic to be specified
21 Response under free-field and half-space free-field conditions
   21.1 Frequency response
   21.2 Effective frequency range
   21.3 Transfer function
22 Output power (acoustic power)
   22.1 Acoustic power in a frequency band
   22.2 Mean acoustic power in a frequency band
   22.3 Efficiency in a frequency band
   22.4 Mean efficiency in a frequency band
23 Directional characteristics
   23.1 Directional response pattern
   23.2 Radiation angle
   23.3 Directivity index
   23.4 Coverage angle or angles
24 Amplitude non-linearity
   24.1 Total harmonic distortion
   24.2 Harmonic distortion of the nth order (where n=2 or n=3)
   24.3 Characteristic harmonic distortion
   24.4 Modulation distortion of the nth order
        (where n=2 or n=3)
   24.5 Characteristic modulation distortion of nth order
        (where n=2 or n=3)
   24.6 Difference frequency distortion (of the second
        order only)
25 Rated ambient conditions
   25.1 Temperature ranges
   25.2 Humidity ranges
26 Stray magnetic fields
   26.1 Static components
   26.2 Dynamic components
27 Physical characteristics
   27.1 Dimensions
   27.2 Mass
   27.3 Cable assemblies
28 Design data
29 Indication of the characteristics to be specified
Annex A (informative) Standard measuring enclosure type A
Annex B (informative) Standard measuring enclosure type B
Annex C (informative) Definitions of terms used in Clause 13
Annex D (informative) Listening tests
Annex ZA (normative) Normative references to international
                     publications with their corresponding
                     European publications
Bibliography

Gives the characteristics to be specified and the relevant methods of measurement for loudspeakers using sinusoidal or specified noise or impulsive signals. Applies to sound system loudspeakers, treated entirely as passive elements.

DevelopmentNote
Supersedes IEC 60200. (02/2002) For CENELEC adoptions of IEC publications, please check www.iec.ch to be sure that you have any corrigenda that may apply. (01/2017)
DocumentType
Standard
Pages
62
PublisherName
National Standards Authority of Ireland
Status
Current

IEC 60268-3:2013 Sound system equipment - Part 3: Amplifiers
ISO 3744:2010 Acoustics Determination of sound power levels and sound energy levels of noise sources using sound pressure Engineering methods for an essentially free field over a reflecting plane
ISO 3743-2:1994 Acoustics Determination of sound power levels of noise sources using sound pressure Engineering methods for small, movable sources in reverberant fields Part 2: Methods for special reverberation test rooms
IEC 60268-12:1987 Sound system equipment. Part 12: Application of connectors for broadcast and similar use
IEC 60050-151:2001 International Electrotechnical Vocabulary (IEV) - Part 151: Electrical and magnetic devices
EN ISO 3741:2010 Acoustics - Determination of sound power levels and sound energy levels of noise sources using sound pressure - Precision methods for reverberation test rooms (ISO 3741:2010)
IEC 60268-14:1980 Sound system equipment. Part 14: Circular and ellipticalloudspeakers; outer frame diameters and mounting dimensions
HD 483.11 : 200S3 SOUND SYSTEM EQUIPMENT - APPLICATION OF CONNECTORS FOR THE INTERCONNECTION OF SOUND SYSTEM COMPONENTS
EN 60268-12:1995/A2:1995 SOUND SYSTEM EQUIPMENT - APPLICATION OF CONNECTORS FOR BROADCAST AND SIMILAR USE
EN ISO 3744:2010 Acoustics - Determination of sound power levels and sound energy levels of noise sources using sound pressure - Engineering methods for an essentially free field over a reflecting plane (ISO 3744:2010)
EN 60268-3:2013 Sound system equipment - Part 3: Amplifiers
IEC 60263:1982 Scales and sizes for plotting frequency characteristics and polar diagrams
HD 483.1 : 200S2 SOUND SYSTEM EQUIPMENT - GENERAL
IEC 60268-1:1985 Sound system equipment. Part 1: General
ISO 3741:2010 Acoustics Determination of sound power levels and sound energy levels of noise sources using sound pressure Precision methods for reverberation test rooms
EN 60651:1994/A2:2001 SOUND LEVEL METERS (IEC 60651:1979/A2:2000)
ISO 3745:2012 Acoustics — Determination of sound power levels and sound energy levels of noise sources using sound pressure — Precision methods for anechoic rooms and hemi-anechoic rooms
IEC 61260:1995 Electroacoustics - Octave-band and fractional-octave-band filters
HD 483.2 : 200S2 SOUND SYSTEM EQUIPMENT - EXPLANATION OF GENERAL TERMS AND CALCULATION METHODS
IEC 60268-11:1987 Sound system equipment. Part 11: Application of connectors for the interconnection of sound system components
EN 61260:1995/A1:2001 ELECTROACOUSTICS - OCTAVE-BAND AND FRACTIONAL-OCTAVE-BAND FILTERS
IEC 60651:1979+AMD1:1993+AMD2:2000 CSV Sound level meters
ISO 3743-1:2010 Acoustics Determination of sound power levels and sound energy levels of noise sources using sound pressure Engineering methods for small movable sources in reverberant fields Part 1: Comparison method for a hard-walled test room

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