NA 022

DKE German Commission for Electrical, Electronic & Information Technologies of DIN and VDE

DIN EN ISO 8253-2 [CURRENT] references following documents:

Document number Edition Title
IEC 60581-7 1986 High fidelity audio equipment and systems; Minimum performance requirements. Part 7 : Loudspeakers More 
ISO 266 1997-04 Acoustics - Preferred frequencies More