FEATURES
- 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
SPECS
Technical Specification
COMPLIANCE
- 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
PHYSICAL
- 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
PERFORMANCE
- 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°
TRANSDUCERS
- Driver Protection
- Recommended high-pass protection 70 Hz with minimum 24-dB/octave filter
- Low-Frequency
- 1 × 4.5 in (114 mm) woofer
Included in Packaging
- (2) weather-resistant input covers
- (1) cutout template


















