JBL MTC-81BB8 Pre-install Deep Backcan For 8138

JBL MTC-81BB8 Pre-Install Deep Backcan For 8138

The MTC-81BB8 is a robust pre-install deep backcan engineered for professional ceiling speaker installations where structural support and cable management are critical. This steel construction housing delivers the durability and precision fit required in commercial and architectural audio applications, making it an essential component for installers working with compatible JBL ceiling speaker systems.

Installation & Mounting

Designed for seamless integration with ceiling speakers featuring a 286 mm (11.25 in) mounting circle diameter, the unit secures via four M4 clip-nut attachment points for stable, code-compliant mounting. Two flexible perforated suspension tabs on each side distribute load evenly and accommodate standard installation techniques without requiring custom bracing.

Design & Construction

Built from 16 gauge (1.3 mm thick) steel with a black polymer E-coating finish, this backcan resists corrosion and maintains structural integrity in demanding environments. The compact footprint—300 mm x 300 mm x 178 mm (11.75" x 11.75" x 7")—provides a 7.4 liter internal volume for wire routing while fitting within standard ceiling cavity constraints.

Key Features

• Compatible with ceiling speakers on 286 mm (11.25 in) mounting circle
• Internal volume: 7.4 liters (0.26 cubic feet)
• Dimensions: 178 mm H x 300 mm W x 300 mm D (7" x 11.75" x 11.75")
• 16 gauge steel construction with black polymer E-coat finish
• Five conduit knockouts: 22 mm (0.87 in) diameter—four on side, one on top
• Two flexible perforated suspension tabs for load distribution
• Four M4 clip-nuts on standard mounting circle
• Net weight: 1.1 kg (2.5 lbs)

The MTC-81BB8 delivers the structural support and wire management infrastructure professional installers depend on for reliable, long-term ceiling speaker deployments.