JBL MTC-81BB8 Pre-Install In-Ceiling Backcan for 8138 Speaker, 4 Pack
The JBL MTC-81BB8 is designed for use in applications requiring preinstalled backcans and is compatible with ceiling speakers having a 286 mm (11-1/4") mounting circle diameter, such as the JBL 8138 ceiling loudspeaker and the JBL MTC-81TB8 tile bridge for suspended ceilings providing a larger backcan air volume than most cost-effective backcans. The MTC-81BB8 allows ceiling speakers to produce extra bass capability for a wider frequency response and improved overall sound quality. The MTC-81BB8 is supplied with five conduit knockouts, four clip-nuts for tile bridge to backcan attachment, as well as acoustic lining and two perforated bend-up mounting straps.
- 5 conduit knockouts for easy cable installation
- Extra-large volume provides extra bass response
- Industry-standard 11.25" mounting circle
- Designed to fit the 8138 in-ceiling speaker and the MTC-81TB8 tile bridge
- Nesting capability reduces the amount of space needed for storage
Compatibility |
8138 200 mm (8 in) ceiling speaker
MTC-81TB8 tile bridge for 600 mm (24 in) ceiling tile applications |
Material |
16 gauge (1.3 mm thick) steel, finished in black powder coating for a high level of rust resistance |
Attachment Points |
4 clip-nuts on 286 mm (11-1/4") mounting circle fix M4 tapping screws for attaching tile bridge to backcan, plus 4 thru holes providing clearance for screws from speaker to attach to tile bridge |
Suspension Tabs |
2 flexible perforated mounting straps, one on each side |
Knockouts |
22 mm (0.87 in) diameter opening
Five (5) locations: 4 on side of can, 1 on top of panel of can |
Internal Volume |
7.4 liters (0.26 cu ft) |
Dimensions (H x W x D) |
7 x 11.75 x 11.75" (178 x 300 x 300mm) |
Weight |
1.1 kg / 2.5 lbs (each) |