Specifications
FRB68
Speaker Compatibility
AMC 680
Hole Cutout
9
3
/
4
”
Can Depth
7
1
/
4
”
Plate Dimension (W x L)
23
3
/
4
” x 13”
Enclosure Volume
0.62 ft
3
Description
The FRB68 model covered in the manual were designed to accommodate the Snell Acoustics AMC 680r round in-ceiling
loudspeakers. They meet the stringent requirements of electrical codes throughout the country for fire and plenum rated
enclosures. Such enclosures are often required by building codes in commercial applications and in town homes or
condominiums.
Each FRB model is made from heavy gauge steel that is both heat and fire resistant. A 2” layer of insulation lines the inside
of the enclosure and provides up to 10dB of acoustical isolation between adjoining rooms. Each unit also includes internal
mounting posts for 70/100 volt transformers for use in commercial applications or home audio systems where many speakers
are used or where speaker wires must be run over long distances.
Additional Key Features
• The FRB models meet the following agency requirements:
UL 2043
UL 263
ATSM E119
NFPA251
CAN/ULC S101/M89
UBC 7-1
• Standard 3/8” knockouts for the two supplied ULM connectors
• Color coded raised flange around the speaker opening to aid location after drywall installation –
Orange for 8” speakers
• The FRB68 can be mounted in 16” or 24” stud bays.
• Adjustable support bars are supplied that allow easy installation in drop tile ceilings
• An integrated safety tab is mounted on the back of the cabinet for an installer-supplied safety cable
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