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I.S. HD 483.5 S2:1995

Withdrawn
Withdrawn

A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.

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

Hardcopy , PDF

Withdrawn date

02-19-1999

Language(s)

English

Published date

01-01-1995

Preview

FOREWORD
PREFACE
1 Scope
2 Object
SECTION ONE - GENERAL
3 Conditions
   3.1 General conditions
   3.2 Conditions for the measurement
4 Test signals
   4.1 Sinusoidal signal
   4.2 Broadband noise signal
   4.3 Narrow band noise signal
5 Acoustical environment
   5.1 Free-field conditions
   5.2 Half space free-field conditions
   5.3 Diffuse sound 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
8 Measuring equipment
9 Accuracy of acoustical measurement
10 Mounting of loudspeakers
   10.1 Mounting and acoustical loading of drive units
   10.2 Mounting and acoustical loading of loudspeaker system
11 Standard baffle
12 Preconditioning
SECTION TWO - CHARACTERISTICS TO BE SPECIFIED AND THE
              RELEVANT METHODS OF MEASUREMENT
13 Type description
   13.1 Loudspeaker drive units
   13.2 Loudspeaker system
14 Marking of terminals and controls
15 Reference plane, reference point and reference axis
   15.1 Reference plane
   15.2 Reference point
   15.3 Reference axis
16 Impedance and derivative characteristics
   16.1 Rated impedance
   16.2 Impedance curve
   16.3 Total Q-factor (Q[1])
   16.4 Equivalent air volume of a loudspeaker drive unit
        compliance (V[as])
17 Input voltage
   17.1 Short term maximum input voltage
   17.2 Long term maximum input voltage
   17.3 Rated sinusoidal voltage
   17.4 Rated noise voltage
18 Input electrical power
   18.1 Short term maximum power
   18.2 Long term maximum power
   18.3 Rated sinusoidal power
   18.4 Rated noise power
19 Frequency characteristics
   19.1 Rated frequency range
   19.2 Resonance frequency
   19.3 Tuning frequency of a bass reflex or passive radiator
        loudspeaker system
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 stated frequency band
   20.3 Characteristic sensitivity in a stated frequency band
   20.4 Characteristic sensitivity level in a stated frequency band
   20.5 Mean sound pressure in a stated frequency band
   20.6 Mean sound pressure level in a stated frequency band
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 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
24 Amplitude non-linearity
   24.1 Introduction
   24.2 Total harmonic distortion
   24.3 Harmonic distortion of the n[th] order
   24.4 Characteristic harmonic distortion
   24.5 Total noise distortion
   24.6 Noise distortion of the n[th] order
   24.7 Characteristic noise distortion
   24.8 Modulation distortion of the n[th] order
   24.9 Characteristic modulation distortion of the n[th] order
   24.10 Difference frequency distortion
   24.11 Noise intermodulation distortion
SECTION THREE - OTHER CHARACTERISTICS AND CLASSIFICATION
25 Interfering stray field
26 Rated ambient conditions
27 Physical characteristics
   27.1 Dimensions
   27.2 Weight
   27.3 Cable assemblies
28 Design data
29 Classification of the characteristics to be specified
FIGURES
ANNEX ZA (normative) OTHER INTERNATIONAL PUBLICATIONS QUOTED
         IN THIS STANDARD WITH THE REFERENCES OF THE RELEVANT
         EUROPEAN PUBLICATIONS

Applicable to sound system loudspeakers, treated as entirely passive elements. Loudspeakers with built-in amplifiers are excluded.

DocumentType
Standard
Pages
94
PublisherName
National Standards Authority of Ireland
Status
Withdrawn

Standards Relationship
HD 483.5 : 200S2 Identical
IEC 60268-5:2003+AMD1:2007 CSV Identical

EN 60065:2014/AC:2017-01 AUDIO, VIDEO AND SIMILAR ELECTRONIC APPARATUS - SAFETY REQUIREMENTS (IEC 60065:2014/COR2:2016)
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 ISO 3745:2012/A1:2017 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 (ISO 3745:2012/AMD 1:2017)
HD 483.12 : 200S2 SOUND SYSTEM EQUIPMENT - APPLICATION OF CONNECTORS FOR BROADCAST AND SIMILAR USE
IEC 60225:1966 Octave, half-octave and third-octave band filters intended for the analysis of sounds and vibrations
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)
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
EN 60651:1994/A2:2001 SOUND LEVEL METERS (IEC 60651:1979/A2:2000)
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
IEC 60651:1979+AMD1:1993+AMD2:2000 CSV Sound level meters

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