
SOUND SYSTEM EQUIPMENT - CIRCULAR AND ELLIPTICAL LOUDSPEAKERS; OUTER FRAME DIAMETERS AND MOUNTING DIMENSIONS
出版:International Electrotechnical Committee

专家解读视频
268-14A FIRST SUPPLEMENT 1973 S/S Gives dimensional characteristics of single moving-coil (dynamic) loudspeakers of the direct radiator type.
DIN 45571 : 1983 - Identical
UNE 20502-14 : 1985 - Identical
DIN 45571 : 1983 - Corresponds
UNE 20502-14 : 1985 - Identical