Bose FreeSpace DS 40F – SINGLE

Description

Key Features

Full-range loudspeaker with a single 114 mm (4.5”) driver in a ported enclosure to deliver a 125° conical coverage
pattern and clear, intelligible music and speech reproduction for flush-ceiling or pendant-mount applications

Integrated multi-tap transformer with innovative thumb wheel adjustment for easy-to-change tap setting from
underneath the loudspeaker grille

Shortcan design allows installation in shallower ceilings with minimum depth of 153 mm (6.0”)

Shared voicing across entire FreeSpace DS product family enables DS 16, DS 40 and DS 100 loudspeakers to be
integrated on the same system and maintain consistent tonal quality

Supported by a suite of accessories, including ceiling-mount bracket, adjustable tile bridge, pendant-mount kit and
square grille

Technical Specifications

System Performance
Frequency Response (+/–3 dB) 1 80 Hz to 17 kHz
Frequency Range (–10 dB) 1 70 Hz to 19 kHz
Nominal Dispersion 125° conical
Recommended High-pass Filter 70 Hz high-pass filter
Loudspeaker EQ Recommended
Overload Protection PTC/Resistor
Long-Term Power Handling 2 40 W (160 W peak)
Sensitivity (SPL / 1 W @ 1 m) 3 87 dB SPL
Maximum SPL @ 1 m 4 103 dB SPL (109 dB SPL peak)
Nominal Impedance 8 Ω (transformer bypassed)
Transformer Taps (70/100 V) 70 V: 2.5 W, 5 W, 10 W, 20 W, 40 W
100 V: 5 W, 10 W, 20 W, 40 W

Transducers
Driver Complement 114 mm (4.5”) full-range driver

Physical
Enclosure Engineered plastics (paintable), powder-coated steel (rear enclosure)
Grille Powder-coated steel grille (paintable)
Environmental Indoor use only
Connectors Three-terminal barrier strip; two-terminal barrier strip (8 Ω variant)
Optional accessory available for use when ceramic connector and thermal fuse are required.
Wire gauge: 18 AWG (0.8 mm) to 14 AWG (2.0 mm)
Suspension/Mounting Three updated quick-install mounting arms
Three mounting points at the rear of the enclosure for use with optional accessory pendant
mount kit
Safety cable attachment: 8.9 mm (.35”) diameter hole on junction box
Dimensions (H × W × D) Outer flange diameter: 300 mm (11.8”)
Depth: 153 mm (6.0”)
Ceiling hole diameter: 267 mm (10.5”)
Maximum Ceiling Thickness 39 mm (1.5”)
Net Weight 3.6 kg (8.0 lb) – with transformer 2.7 kg (5.9 lb) – 8 Ω variant
Shipping Weight 4.9 kg (10.7 lb) – with transformer 3.8 kg (8.7 lb) – 8 Ω variant

Product codes
Black/Grey White
DS 40F Loudspeaker 321278-0131 321278-0231
DS 40F Loudspeaker – 8 Ω 321278-0141 321278-0241
DS 40F Loudspeaker – VA N/A 321278-0251

Additional information