Amendment 1 - Audiovisual, video and television equipment and systems. Part 4: Preferred matching values for the interconnection of equipment in a system.— 7 стр.
Sound system equipment: Headphones and earphones associated with personal music players. Maximum sound pressure level measurement methodology. Matching of sets with headphones if either or both are offered separately, or are offered as one package equipment but with standardised connectors between the two allowing to combine components of different manufacturers or different design— 12 стр.
Electroacoustics - Hearing aids - Part 4: Induction-loop systems for hearing aid purposes - System performance requirements (IEC 60118-4:2014); German version EN 60118-4:2015— 56 стр.
Electroacoustics - Audio-frequency induction loop systems for assisted hearing - Part 1: Methods of measuring and specifying the performance of system components (IEC 62489-1:2010 + A1:2014); German version EN 62489-1:2010 + A1:2015— 31 стр.
Electroacoustics - Audio-frequency induction loop systems for assisted hearing - Part 1: Methods of measuring and specifying the performance of system components (IEC 62489-1:2010 + A1:2014 + A2:2017); German version EN 62489-1:2010 + A1:2015 + A2:2018— 34 стр.
Amendment 1 - Audiovisual, video and television equipment and systems. Part 4: Preferred matching values for the interconnection of equipment in a system.— 7 стр.
