23-01-2023
11
Engineering
Audio & Visual Equipments
265 L.E.
IEC: 5817-1/1986 High fidelity audio equipment and systems Minimum performance reqirements –Part 7 : loud - speakers IEC 581 - 1 High fidelity audio equipment and systems Minimum performance reqirements, part : general IEC 268 -5 Sound system
Updated
Not Obligatory