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  • BS 6840-15:1992

    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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    Available format(s):  Hardcopy, PDF

    Superseded date:  15-05-1997

    Language(s):  English

    Published date:  01-01-1992

    Publisher:  British Standards Institution

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    Table of Contents - (Show below) - (Hide below)

    Committees responsible
    National foreword
    1. Scope
    2. Reference documents
    Section one. Power supply
    3. A.C. power supply voltages and frequencies
    4. D.C. power supply voltages
    5. Power supply feeding for microphones
    Section two. Interconnections
    6. Connections
    7. Connectors
    Section three. Marking
    8. Marking
    9. General purpose inputs
    Section four. Preferred matching values
    10. Matching of microphones and amplifiers
    10.1 Microphones
    10.2 Microphones with built-in amplifier
    10.3 Power supply feeding for electret microphones fed
          over a separate conductor
    10.4 Phantom supply system
    10.5 A-B supply system
    10.6 Polarity of the audiofrequency voltage
    10.7 Input from microphone to computer (for example
          for a voice recognition system)
    11. Matching of record playing units (pick-ups) and
    12. Matching of tuners and amplifiers
    13. Matching of amplifiers and amplifiers
    13.1 Pre-amplifiers and power amplifiers for household
          and sound reinforcement
    13.2 For broadcast and similar line-amplifiers
    14. Matching of magnetic tape recorders and amplifiers
    14.1 Output
    14.2 Current-fed input
    14.3 Voltage-fed input
    15. Matching of auxiliary equipment and amplifiers
    15.1 Output
    15.2 Input
    16. Matching of loudspeakers and amplifiers
    16.1 Single unit loudspeakers
    16.2 Loudspeaker systems
    16.3 Voltage (or power) matching of amplifiers and
    16.4 Polarity of the sound pressure
    17. Matching of headphones and amplifiers
    17.1 Impedance-defined headphones
    17.2 Voltage-defined headphones
    18. Auxiliary passive elements
    19. Analogue matching of digital audio sources and
          amplifiers for household and similar use
    Annex ZA (informative) Other international publications
             quoted in this standard with the references of
             the relevant European publications
    National annex NA (informative) Cross-references

    Abstract - (Show below) - (Hide below)

    Applies to preferred electrical values for the interconnection of sound system components.

    General Product Information - (Show below) - (Hide below)

    Committee EEL/32
    Development Note Supersedes BS 6840: Part 15: 1988
    Document Type Standard
    Publisher British Standards Institution
    Status Superseded
    Superseded By

    Standards Referencing This Book - (Show below) - (Hide below)

    IEC 60038:2009 IEC standard voltages
    IEC 60268-3:2013 Sound system equipment - Part 3: Amplifiers
    IEC 60268-12:1987 Sound system equipment. Part 12: Application of connectors for broadcast and similar use
    IEC 60268-7:2010 Sound system equipment - Part 7: Headphones and earphones
    IEC 60094-2:1994 Magnetic tape sound recording and reproducing systems - Part 2: Calibration tapes
    IEC 60268-1:1985 Sound system equipment. Part 1: General
    IEC 60098:1987 Analogue audio disk records and reproducing equipment
    IEC 60268-11:1987 Sound system equipment. Part 11: Application of connectors for the interconnection of sound system components
    IEC 60268-4:2014 Sound system equipment - Part 4: Microphones
    IEC 60268-5:2003+AMD1:2007 CSV Sound system equipment - Part 5: Loudspeakers
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