- New
Maintain consistent tonal quality
Hear the best of both — music and voice
Customize systems with confidence
Blend with more room designs
Tackle site-specific challenges Install with ease
Support public safety
Bring quality sound to more places with the FS4CE
Maintain consistent tonal quality with shared voicing across all FS models
Hear the best of both — music and voice — with transducers that offer clear voice reproduction and smooth response for background music
Customize systems with confidence using in-ceiling, surface-mount, and pendant-mount options, allowing for tailored mixand-match installations. DesignMax subwoofers and larger models can expand your system design options even further
Blend with more room designs with updated enclosures — available in black and white — that pair modern aesthetics with practical features, including removable logos
Tackle site-specific challenges with the support of a full suite of accessories, designed to handle a wide range of applications and mounting options
Install with ease — all models feature Euroblock inputs and front-baffle input location on in-ceiling models
Support public safety — EN54-24 for Voice Alarm Systems for Fire Detection and Fire Alarm Systems for Buildings
Bring quality sound to more places with the FS4CE — rated for outdoor, wet installations
EN 54-24 Certified
Yes
Safety Agency Ratings
EN 54-24:2008 for Voice Alarm Systems; UL 1480(A); in compliance with UL 2043 for plenum-space installation; NFPA 70 & NFPA 72; CSA C22.1 Section 32
Colors
Black (similar to RAL 9005), white (similar to RAL 9003)
Enclosure Material
Engineered-plastics front baffle, highly UV fade-resistant, with integrated steel-formed backcan
Grille
Perforated steel, powder-coated finish
Ingress Protection
IP55
Ceiling Cutout
9.8 in (249 mm)
Logo
Rotatable, removable
Suspension/Mounting
(3) mounting arms, (1) safety cable attachment point
Operating Temperature Range
-25 °C to 70 °C (-13 °F to 158 °F)
Product Dimensions (H×W×D)
10.7 in × 6.8 in (272 mm × 172 mm), loudspeaker diameter × depth / 8.7 in × 6.4 in (220 mm × 163 mm), backcan diameter × depth
Net Weight
7.7 lb (3.5 kg), loudspeaker with grille (single)
Shipping Weight
20.0 lb (9.1 kg), pair
Frequency Range (-10 dB)
70 – 17,000 Hz
Coverage, Horizontal
145°
Calculated Maximum SPL @ 1 m
104 dB
Nominal Impedance
8 Ω (transformer bypass)
Power Handling, long-term continuous
40 W
Power Handling, Peak
160 W
Recommended Signal Processing
Not required, Bose Professional EQ voicing and SmartBass processing available
Sensitivity (SPL/1 W at 1 m)
88 dB
Transformer Taps, 100V
5, 10, 20, 40 W, bypass
Transformer Taps, 70V
2.5 W, 5 W, 10 W, 20 W, 40 W, bypass
Coverage, Vertical
145°
Driver Protection
Recommended high-pass protection 70 Hz with minimum 24-dB/octave filter
Low-Frequency
1 × 4.5 in (114 mm) woofer
(2) weather-resistant input covers
(1) cutout template
Maintain consistent tonal quality
Hear the best of both — music and voice
Customize systems with confidence
Blend with more room designs
Tackle site-specific challenges Install with ease
Support public safety
Bring quality sound to more places with the FS4CE