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Bose Professional FS4SEB — pair of black surface mount loudspeakers from the FreeSpace FS series, designed for foreground and background music plus voice reinforcement in commercial installations. The FS4SEB delivers clear, intelligible audio for retail spaces, restaurants, offices, and other commercial environments. Each speaker features a 4.5-inch full-range driver with broad conical dispersion, and the IP55-rated enclosure allows both indoor and outdoor deployment. The built-in 70/100V transformer supports distributed audio systems, with an 8-ohm bypass for direct connection. Key features 4.5-inch full-range driver per speaker Broad 170° conical dispersion pattern 70/100V transformer with multiple tap settings plus 8-ohm direct IP55 weather-rated for indoor and outdoor use Paintable cabinet for custom finishes Sold as a pair Connectivity & Compatibility 70/100V transformer with tap settings 8-ohm bypass option Compatible with Bose Professional FreeSpace CX and DX series amplifiers Compatible with FS-CMB-S2B and FS-CMB-S2W ceiling mount brackets