JBL CSS 8008 8" Full-Range Ceiling Speaker

JBL Professional CSS8008 - 8" Full-Range In-Ceiling Speaker with 25/70/100V Transformer and 120° Conical Coverage

The JBL Professional CSS8008 is an 8” (200 mm) full-range in-wall loudspeaker designed for commercial PA and background music applications requiring wide coverage, high intelligibility, and standardized installation. With 96 dB sensitivity and a 120° conical pattern , it delivers adequate levels with lower amplification power, optimizing costs for distributed lines. It incorporates a 5 W multi-voltage transformer compatible with 25/70/100 V with multiple taps, and is prepared for mounting with pre-installed backcans and suspended ceiling tracks, complying with plenum regulations when installed with the specified accessories.

Main features

• Transducer : 200 mm (8") full-range dual-cone.
• Sensitivity : 96 dB (1 W/1 m, 2–6 kHz).
• Coverage : 120° conical for uniformity over large areas.
• Frequency range (-10 dB) : 55 Hz – 16 kHz as speaker/grille assembly; 100 Hz – 16 kHz installed in CSS-BB8 .
• Continuous transducer power : 15 W.
• 25/70/100 V transformer (max. insertion loss 1.5 dB) with sockets :
  • 100 V : 5 W, 2.5 W, 1.3 W
  • 70V : 5W, 2.5W, 1.3W, 0.7W
  • 25V : 5W, 2.5W, 1.3W, 0.7W
• Max SPL (1 m) : 103 dB (at top tap).
• Connection : bare cable (screw terminal integrated into the assembly).
• Pre-assembled set : speaker + transformer + painted metal grille.
• Color : white.

Installation and compatibility

• Recommended backcan : CSS-BB8 (0.15 ft³). Also compatible are MTC-81BB8 (0.26 ft³), MTC-200BB6 (0.5 ft³) and MTC-300BB8 (1.0 ft³).
• Tracks for suspended ceiling : CSS-TR4/8 (for CSS-BB4/BB8).
• Plenum Use : Yes , when installed with the corresponding backcan (UL1480, UL2043; NFPA 90/70).
• Fixing pattern : 4 points in a 286 mm (11.25") circle.
• Roof opening : 216 mm (8.5") in open mount; 295 mm (11.7") with CSS-BB8 .
• Grille diameter : 327 mm (12.9"). Depth behind grille : 71 mm (2.8").
• Weight : 1.27 kg per unit.
• Included accessories : 4 M4 × 40 mm screws for fixing to the backcan.

Product benefits

• Efficiency on distributed lines : High sensitivity (96 dB) allows for higher SPL with lower watts , ideal for low taps and large venues.
• Wide coverage with fewer units : The 120° pattern reduces “hot spots” and can decrease speaker density.
• Rapid and regulatory deployment : pre-assembled set and official accessories for clean assembly and use in plenum.
• Full compatibility : operates on 25/70/100 V , integrating into new or existing systems without additional adapters.

Use cases

• Retail, hospitality, and catering with background music and advertisements.
• Education, corporate buildings, and healthcare facilities with clear PA needs.
• Transit spaces (lobbies, hallways, reception areas) where high coverage with a discreet aesthetic is required.

Frequently Asked Questions

• Does it include backcan and rails? No. They are sold separately. The compatible model is CSS-BB8 and CSS-TR4/8 rails for suspended ceilings.
• Can I use it in a plenum box? Yes, as long as it's installed with a listed backcan (e.g., CSS-BB8 ), compliant with UL1480/UL2043.
• Does it support low impedance? The CSS8008 is designed for 25/70/100 V distributed lines. If you require low impedance, consider models in the Control Contractor series.

Description for projects

JBL CSS8008 ceiling speaker: 8" full-range (dual cone); sensitivity 96 dB; coverage 120°; range (-10 dB) 55 Hz–16 kHz (100–16 kHz with CSS-BB8 ); continuous transducer power 15 W; transformer 25/70/100 V with taps 5/2.5/1.3 W (70 V and 25 V add 0.7 W); max. SPL 103 dB (1 m, top tap); bare wire connection; 4-point fixing on Ø 286 mm; cutout 216 mm open / 295 mm with CSS-BB8; depth 71 mm; grille diameter 327 mm; weight 1.27 kg; color white; plenum use with listed backcan.