BS 6840-1:1987 PDF

1   Scope This standard applies to sound systems of any kind, and to the parts of which they are composed or which are used as auxiliaries to such systems. This standard deals with the determination of the performance of sound system equipment, the comparison of these types of equipment and the determination of their proper practical application, by listing the characteristics which are useful for their specification and laying down uniform methods of measurements for these characteristics. The standard is confined to a description of the different characteristics and the relevant methods of measurement; it does not in general specify performance (except in Part 10). The complete standard consists of the following parts, in which the characteristics of various parts of sound systems and their methods of measurement are specified; some parts include preferred values:

— Part 1: General;

(Uniform characteristics and methods of measurement);

— Part 2: Explanation of General Terms;

(Explanation of general terms and calculation methods);

— Part 3: Sound System Amplifiers;

(Amplifiers forming part of a sound system for professional and domestic applications); ...