Skip to product information
1 of 1

JBL MTC-81BB8 Pre-Install In-Ceiling Speaker Backcan

JBL MTC-81BB8 Pre-Install In-Ceiling Speaker Backcan

SoundPro Item: 17862 | Part Number: MTC-81BB8

Regular price $67.00
Regular price $67.00 Sale price $67.00
Your Price Sold out
MSRP: $67.00 | MAP: $67.00

Usually ships in 5-7 business days

  • 7.4 Liter Internal Volume Maximizes Bass Response And Acoustic Performance
  • 286mm Bolt-Mounting Circle Ensures Direct Fit With 8138 Speaker Frame
  • Five Conduit Knockouts Enable Flexible Wire Routing During Rough-In
  • Durable 16-Gauge Steel With Powdercoat Finish Withstands Installation Environments
  • Nesting Design Reduces Storage Space Between Project Installations
  • Dual Suspension Tabs Secure Mounting To Ceiling Joists And Framing

The JBL MTC-81BB8 backcan is purpose-built for integrators installing the 8138 ceiling speaker in new construction and retrofit applications. Its generous 7.4-liter internal volume creates an acoustic chamber that extends low-frequency performance beyond what surface-mount or smaller enclosures can deliver, making it ideal for ballrooms, hospitality venues, and large open spaces where full-range coverage is required.

Constructed from 16-gauge steel with durable powdercoating, the backcan features five conduit knockouts positioned on the can body and top panel for flexible wire routing during rough-in. The industry-standard 286mm bolt-mounting circle integrates directly with the 8138 speaker frame, while dual suspension tabs support secure ceiling joists or framing. Nesting design during storage reduces footprint for integrators managing multiple installations, and the unit ships in packs of four for multi-room projects.

View full details

Specifications

Dimensions
Height|7.00"
External Diameter|11.75"
Bolt-Mounting Circle|11.25"
Construction
Material|16 Gauge (1.3mm) Steel
Finish|Powdercoat
Internal Volume
Volume|7.4 liters (0.26 cu ft)
Connectivity
Conduit Knockouts|5 locations (22mm openings on sides and top)
Suspension Tabs|2 Flexible Perforated Mounting Straps

Why Choose SoundPro?

Since 1972, SoundPro has been the trusted source for audio, video, and lighting gear. Whether you're starting your AVL journey or are a seasoned professional, we're here to help you every step of the way.

  • Certified Account Managers

    Our Account Managers, with 16+ industry certifications, are ready to find your solution.

  • Personalized Pricing

    We know every project is unique. Get a personalized quote anytime you need it

  • Fast Shipping & Local Pickup

    In stock items ship same day if ordered by 4pm CST. Pickup offered in Irving, TX.

  • Accountability from Real People

    We aim for a smooth, transparent experience by setting and sticking to clear expectations.

  • Easy Payments & Financing

    We accept all major credit cards and also offer financing through our partners.

1 of 2