EN 60268-3:2013

FOREWORD
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

IEC 60268-3:2013 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. This fourth edition cancels and replaces the third edition published in 2000 and constitutes a technical revision. It includes the following technical changes: - rated condition of multi-channel amplifier is expanded; - arrangement for the D-class amplifier is added; - method of measurement for output power (distortion-limited) is expanded; - Annex B is newly added.