Sound system equipment. Guide for circular and elliptical loudspeakers; outer frame diameters and mounting dimensions.
STANDARD published on 30.10.1987
Designation standards: BS 6840-14:1987
Note: WITHDRAWN
Publication date standards: 30.10.1987
The number of pages: 14
Approximate weight : 42 g (0.09 lbs)
Country: British technical standard
Category: Technical standards BS