JBL MTC-81BB8 Backcans for JBL 8138 Ceiling Speakers (Pack of 4)

The JBL MTC-81BB8 Backcans for JBL 8138 Ceiling Speakers is designed for use in applications requiring preinstalled backcans and is compatible with ceiling speakers having a 286 mm (11.25-inch) mounting circle diameter, such as the JBL 8138 ceiling loudspeaker, and the JBL MTC-81TB8 tile bridge for suspended ceilings.

JBL MTC-81BB8 Backcans for JBL 8138 Ceiling Speakers Speaker Features

- Fits 8138 speaker and MTC-81TB8
- Tile Bridge
- Extra-large 7.4 litre (0.26 cu ft)
- volume allows for extra bass
- Industry standard 286 mm (11.25-inch)
- mounting circle
- Five conduit knockouts
- Nesting during storage minimizes

JBL MTC-81BB8 Backcans for JBL 8138 Ceiling Speakers Specifications

- Internal Volume: 7.4 liters (0.26 cu ft)
- Knockouts: 22 mm (0.87-inch) diameter opening
- Five (5) locations: 4 on side of can1 on top of panel of can
- Suspension Tabs: 2 flexible perforated mounting straps, one on each side.
- Attachment Points: 4 clip-nuts on 286 mm (11.25-inch) 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 (see assembly drawing).
- Material: 16 gauge (1.3 mm thick) steel, finished in black polymer E-coating for a high level of rust resistance.
- Dimensions (H x W x D): 178 mm (7-inch) height x 300 mm (11.75-inch) width and depth
- Net Weight (each): 1.1 kg (2.5 lbs)
- Shipping Weight (ea): 1.5 kg (3.2 lbs)
- Associated Models: 8138 200 mm (8-inch) ceiling speakerMTC-81TB8 tile bridge for 600 mm (24-inch) ceiling tile applications