BS EN 60268-3:2013

1 Scope
2 Normative references
3 Conditions
4 Classes of operation
5 Interchangeable parts
6 Automatic controls
7 Power supply
8 Position of the volume controls
9 Pre-conditioning for measurements
10 Series of measurements
11 Variable consumption apparatus
12 Marking
13 Operating environment
14 Characteristics to be specified, and their methods
   of measurement
Annex A (informative) - Balanced interfaces
Annex B (informative) - Specification of a multi-channel
        amplifier
Bibliography
Annex ZA (normative) - Normative references to
         international Publications with their
         corresponding European publications

Pertains to analogue amplifiers, and the analogue parts of analogue/digital amplifiers, which form part of a sound system for professional or household applications.

This part of IEC 60268 applies to analogue amplifiers, and the analogue parts of analogue/digital amplifiers, which form part of a sound system for professional or household applications. It specifies the characteristics which should be included in specifications of amplifiers and the corresponding methods of measurement.

NOTE The methods of measurement for digital amplifiers and similar equipment are given in IEC 61606 [4] 1.

In general, the specified methods of measurement are those which are seen to be most directly related to the characteristics. This does not exclude the use of other methods which give equivalent results.

In general, the methods are based on the simplest measuring equipment which can provide useful results. This does not exclude the use of more complex equipment which can give higher accuracy and/or allow automatic measurement and recording of results.

Rated conditions and standard measuring conditions are specified in order to allow measurements to be reliably repeated.