Description
The JBL MTC-81BB8 is a pre-installation backcan designed for use with compatible ceiling speakers featuring a 286 mm (11.25 in) mounting circle, including the JBL 8138 ceiling loudspeaker. Its extra-large internal volume enhances low-frequency performance, while the durable steel construction and multiple conduit knockouts make it ideal for commercial ceiling speaker installations. The MTC-81BB8 is also compatible with the JBL MTC-81TB8 tile bridge for suspended ceiling applications.
<h2>More Information</h2>
Key Features
- Designed for use with JBL 8138 ceiling loudspeaker
- Compatible with JBL MTC-81TB8 tile bridge
- Extra-large 7.4-liter enclosure volume for enhanced bass response
- Industry-standard 286 mm (11.25 in) mounting circle
- Five conduit knockouts for flexible cable routing
- Durable steel construction with corrosion-resistant finish
- Nesting design reduces storage space requirements
- Suitable for suspended ceiling installations
- Multiple attachment points for secure mounting
- High-strength black polymer E-coated finish
Technical Specifications
- Internal Volume: 7.4 Liters (0.26 cu ft)
- Knockout Size: 22 mm (0.87 in) Diameter Opening
- Conduit Knockouts: 5 Total (4 Side-Mounted, 1 Top-Mounted)
- Suspension Tabs: 2 Flexible Perforated Mounting Straps
- Attachment Points: 4 Clip-Nuts on 286 mm (11.25 in) Mounting Circle
- Material: 16-Gauge (1.3 mm Thick) Steel
- Finish: Black Polymer E-Coating for Corrosion Resistance
- Dimensions (H × W × D): 178 × 300 × 300 mm (7 × 11.75 × 11.75 in)
- Net Weight: 1.1 kg (2.5 lbs)
- Shipping Weight: 1.5 kg (3.2 lbs)
- Associated Models: JBL 8138 Ceiling Speaker, JBL MTC-81TB8 Tile Bridge
- Mounting Circle Diameter: 286 mm (11.25 in)
