Williams AV SP-628 6.5-Inch Passive Ceiling Speaker, 8 Ohms

The Williams AV SP-628 is a full-range, two-way coaxial ceiling speaker designed for clear, low-distortion audio delivery in classrooms or similar environments. It includes a metal back can and mounting hardware for straightforward installation in drop-ceiling or drywall installations.

This passive speaker features a 6.5″ cone woofer and 1″ Mylar dome tweeter, with a 90° coverage pattern and ETL Plenum rating (UL2043), making it suitable for educational and compliant ceiling installations.

Key Features

• Driver Configuration: 6.5″ LF woofer and 1″ Mylar dome tweeter
• Impedance: 8 Ω
• Back Can: Air-sealed steel back-can for infinite baffle installation
• Mounting: Quick-mount clamps, seismic anchors, spring-terminal connectors
• Coverage: 90° H × 90° V nominal
• Certification: ETL Plenum rated, conforming to UL2043
• Crossover: ~6 kHz

Technical Specifications

• Weight: 3.3 lb (1.5 kg)
• Dimensions: 8″ × 5.5″ × 5.5″ (20.32 cm × 13.97 cm × 13.97 cm)
• Cutout Size: 7.1″ × 7.1″ (18 cm × 18 cm)
• Cutout Depth: 5.1″ (13 cm)
• Power Handling: 30 W RMS
• Impedance: 8 Ω
• Frequency Range: 80 Hz to 15 kHz ±6 dB
• Sensitivity: 89 dB SPL
• Magnet (LF): Neodymium, 10 oz (284 g)
• Package Weight: 3.95 lb (1.79 kg)
• Box Dimensions: 9″ × 8.9″ × 6.3″ (22.86 cm × 22.61 cm × 16.00 cm)
• Cutoff Coverage Angle: 90°H × 90°V

What's Included

• 1x Williams AV SP-628 Ceiling Speaker with grille and metal back can