JBL 4-inch 5W Commercial Ceiling Speaker CSS8004

The JBL Professional CSS8004 is a 4-inch, 5-watt commercial ceiling speaker engineered for paging and background music with high sensitivity and easy installation.

Built for stores, restaurants, schools and other public spaces, this ceiling speaker balances clear reproduction with efficient power use. The CSS8004 combines a 4" dual-cone driver, a multi-tap transformer for 100V/70V/25V systems, and a pre-attached grille and transformer to speed up installation while delivering wide coverage and reliable long-term performance.

How loud and wide will this speaker fill a room?

The CSS8004 offers high sensitivity (90 dB) that produces strong sound levels even at low tap settings, and a very wide 175° dispersion pattern for broad coverage from a single ceiling location. It’s designed to deliver intelligible paging and unobtrusive background music across open areas.

• 90 dB sensitivity ensures efficient sound with minimal amplifier power
• 175° coverage for even sound distribution in retail and hospitality spaces
• Frequency response of 85 Hz–18 kHz (driver/grille), 130 Hz–18 kHz when used with back can

What installation features speed up setup and maintenance?

JBL pre-attaches the grille and transformer to the driver so installers spend less time aligning parts. Optional zinc-plated steel back cans (CSS-BB4x6) can be installed and wired ahead of time, allowing inspection before the speaker is dropped in.

• Pre-assembled driver, grille, and transformer for faster installation
• Optional CSS-BB back cans allow pre-wiring and inspection prior to final install
• Standard ceiling cutout and mounting hardware compatible with common commercial fittings

Which systems and environments is the CSS8004 compatible with?

The built-in multi-tap transformer supports 100V, 70V and 25V distributed audio lines, making this speaker suitable for many commercial distributed audio systems. It’s intended for paging and background music applications rather than high-fidelity critical listening.

• Triple-voltage transformer (100V/70V/25V) for flexible system design
• Ideal for paging, background music, restaurants, retail, education and offices
• Durable components like Kapton coil-former and high-temp voice coil wire for reliability

What reliability and component details matter for long-term use?

The CSS8004 uses a 25 mm (1") voice coil, a Kapton coil-former and high-temperature wire to improve power handling and longevity. These choices reduce thermal stress and help the speaker withstand continuous commercial use.

• 25 mm voice coil for better power dissipation and consistent performance
• Kapton coil-former and high-temp wiring increase heat resistance and durability
• Powder-coated optional back can protects wiring and enables easier compliance checks

Who is this for: The JBL Professional CSS8004 is aimed at installers, system integrators and facility managers specifying reliable, efficient ceiling speakers for paging and background music in commercial environments. Choose this model when you need wide coverage, high sensitivity and straightforward integration into 100V/70V/25V distributed audio systems, with optional back cans available for cleaner pre-wiring and inspection workflows.