25/11/2025
Price GHC 2880 for 1
Pre-owned used for less than 6 months
The Bose FS4CE is a 4.5-inch in-ceiling loudspeaker with a frequency range of 70 Hz to 17 kHz (-10 dB), a power handling of 40W continuous and 160W peak, and a nominal impedance of 8 ohms (or 70V/100V with transformer taps). Key specifications include a 145° dispersion angle, an 88 dB sensitivity, and a 104 dB maximum SPL. It features a 4.5-inch full-range driver, Euroblock connectors, and a design optimized for both background music and voice announcements.
Performance
Frequency Response: 70 Hz – 17,000 Hz (-10 dB)
Sensitivity: 88 dB (SPL/1W @ 1m)
Power Handling (Continuous): 40 W
Power Handling (Peak): 160 W
Max SPL (Peak): 104 dB @ 1m (Calculated)
Dispersion Angle: 145°
Nominal Impedance: 8 ohms (transformer bypass)
Transformer Taps: 70V: 2.5, 5, 10, 20, 40 W, bypass; 100V: 5, 10, 20, 40 W, bypass
Driver and acoustics
Driver: 1 x 4.5-inch full-range driver
Recommended High-Pass Filter: 70 Hz with a minimum 24 dB/octave filter
Physical and installation
Dimensions (Diameter x Depth): 272 x 172 mm (10.7 x 6.8 inches)
Ceiling Cutout: 249 mm (9.8 inches)
Installation Depth: 163 mm (6.4 inches)
Weight (Single): 3.47 kg (7.65 lbs)
Connectors: Euroblock 6-pin connector
Mounting: Includes three mounting arms and a safety cable tab