Loudspeakers of permanent audio systems that are installed in fire resistance-rated partitions, walls, or ceilings shall be listed for the purpose or installed in an enclosure or recess that _____.
a) maintains the fire-resistance rating
b) is no more than 4 in. deep
c) is no more than 6 ft - 6 in. high
d) all of the above
See answer and applicable Code reference
The correct answer is: a) maintains the fire-resi