Bose FreeSpace FS4C in-ceiling loudspeaker

FreeSpace FS loudspeakers are the next step of our widely trusted line of in-ceiling and surface-mount loudspeakers, offering significant upgrades in durability, design, and ease of installation — all with remarkably consistent tonality. Engineered for high-quality performance in both background music and voice announcement applications, FS loudspeakers are ideal for almost any commercial space. 

• Full-range 4.5-inch transducer, low-frequency range down to 70 Hz, 8 Ω and 70/100V operation

• Handles the weather, designed for outdoor wet installation

• 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.

  
  

  PERFORMANCE
  

  • Frequency Range (-10 dB)

  • 70 – 17,000 Hz

  • Coverage, Horizontal

  • 145°

  • Maximum SPL at 1 m

  • 88 dB

  • Nominal Impedance

  • 8 Ω (transformer bypass)

  • Power Handling, 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 Transducer Quantity and Size

  • 1 × 4.5 in (114 mm) woofer