AtlasIED B51-4 4-Inch In-Ceiling Speaker with 4W Transformer and 51-4 Baffle

The AtlasIED B51-4 combines the sound quality of a full-range 4-Inch high compliance loudspeaker with the convenience and cost-effectiveness of a factory-assembled loudspeaker, transformer, and baffle package. Featuring the renowned AtlasIED FC104 high-performance loudspeaker, this model delivers clear voice and music reproduction with wide-angle sound dispersion, allowing for fewer speakers in distributed audio systems without sacrificing coverage.

Each speaker incorporates a 10-ounce ceramic magnet and a damped, high-compliance cone to provide excellent low-frequency response and smooth extended audio performance. The package includes a factory-mounted dual-voltage 25V/70.7V transformer and a round or square grille with screw mount or torsion spring installation options. The B51-4 is designed to save installation time and ensure reliable audio quality in background music and paging systems.

Key Features

• Factory-Assembled Loudspeaker Package for Time and Cost Savings
• High Compliance 4-Inch Loudspeaker for Full-Range Audio Reproduction
• Wide 135-Degree Dispersion at -6dB, 2kHz Octave Band
• Includes 4-Watt 25V/70V Transformer
• Available with Round or Square Grille Options

Technical Specifications

• Frequency Response: 150Hz - 17kHz
• Sensitivity: 94dB (at 1W/1m)
• Power Taps: 0.25, 0.5, 1, 2, & 4 Watts
• Speaker Type: 4-Inch (102mm) High Compliance Loudspeaker Transformer / Baffle Assembly
• Dispersion: 135-Degree / -6dB, 2kHz
• Depth: 2.25-Inch (5.715 cm)
• Diameter: 4-Inch (10.16 cm)
• Warranty Period: 60 months from date of purchase