JBL Commercial CSS-BB8X6 8″ Backcan For CSS8008, CSS8018
The CSS-BB8X6 is a professional-grade enclosure back can designed for seamless integration with JBL’s commercial-grade ceiling speakers. This pack of six units provides the acoustic chamber necessary to optimize speaker performance in ceiling-mounted installations, delivering consistent sound projection in commercial and institutional environments.
Installation & Mounting
Each backcan features a 4-point bolt mount circle on a 286 mm (11.25 in) diameter with clip nuts for secure attachment to CSS-8008 and CSS-8018 speakers, plus compatibility with CSS-TR4/8 tile rails. The design includes five conduit knockouts—four positioned at 90° intervals on the sides and one at the center of the top panel—allowing flexible wiring routing without compromising the enclosure integrity.
Acoustic Performance & Construction
Built from zinc-plated, powder-coated steel, each unit weighs just 0.87 kg (2.0 lb) and measures 334 mm (13.2 in) diameter by 108 mm (4.3 in) depth with 4.0 liters (0.15 cu ft) of air space. This acoustic chamber supports clean, focused ceiling speaker output while the robust construction meets UL1480, UL2043, NFPA 90 & NFPA 70 safety standards, making it suitable for air handling spaces in professional installations.
Key Features
- Pack of 6 units for multi-speaker installations
- Compatible with CSS-8008 and CSS-8018 commercial ceiling speakers
- 4-point bolt mount on 286 mm (11.25 in) diameter with clip nuts
- 334 mm (13.2 in) diameter × 108 mm (4.3 in) depth
- 4.0 liters (0.15 cu ft) acoustic air space per unit
- Zinc-plated, powder-coated steel construction
- 0.87 kg (2.0 lb) net weight per unit
- Five conduit knockouts for wire routing flexibility
- UL1480 and UL2043 rated for air handling spaces
- NFPA 90 & NFPA 70 compliant
This backcan assembly delivers the acoustic isolation and structural support required for professional ceiling speaker installations in demanding commercial environments.








