Jbl Professional CSS-BB4X6 Speaker Backcan 6-pack

Product Description

The JBL PROFESSIONAL CSS-BB4X6 is a set of six 4-inch backcans designed for use with CSS8004 series ceiling speakers. A backcan is a rear enclosure that fits behind a ceiling speaker driver, providing acoustic isolation, fire-rating support, and plenum-space containment. This pack of six units allows installers to stock enough hardware for a multi-speaker job without ordering individual pieces. The CSS-BB4X6 is a direct accessory from JBL PROFESSIONAL, ensuring dimensional fit with the corresponding CSS8004 speaker basket without modification. Commercial AV and low-voltage contractors are the primary installers for this type of product.

Backcans like the CSS-BB4X6 are used in commercial and light commercial ceiling speaker installations where code, acoustics, or owner specifications require rear enclosures. Typical applications include conference rooms, corridors, retail spaces, and open-office environments where CSS8004 speakers are installed in drop ceilings or drywall. Installing backcans in plenum-rated ceiling spaces is often required by local fire and building codes. This 6-pack format suits contractors running multi-zone distributed audio systems.

Key Features

• Pack of 6 backcans for efficient multi-speaker installations
• Designed to pair with CSS8004 series ceiling speakers
• Provides rear acoustic isolation for improved sound containment
• Supports plenum-space and fire-code compliance requirements when properly installed
• OEM accessory from JBL PROFESSIONAL ensuring dimensional compatibility with the CSS8004 basket

Compatibility

Designed for use with JBL PROFESSIONAL CSS8004 series ceiling speakers as stated in the product designation. Confirm local code requirements before installation in plenum or non-plenum ceiling cavities.

Installation Notes

Installation is typically performed by licensed low-voltage or commercial AV contractors. De-energize all associated audio and power circuits before working in the ceiling cavity. The backcan should be mounted and secured to framing or the ceiling grid before the speaker driver is dropped in and terminated. Verify local building and fire codes regarding backcan requirements in plenum-rated spaces prior to installation.