Bose FreeSpace 3 Series II Acoustimass Bass Module

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Bose FreeSpace 3 Series II Acoustimass Bass Module



Bose FreeSpace 3 Series II Acoustimass Bass Module

Product Overview

Technical Summary

Frequency Response (+/-3 dB)
50 Hz – 230 kHz

Frequency Range (-10 dB)
40 Hz – 315 Hz

Nominal Dispersion
Omni-directional below 200 Hz

Long-Term Power Handling
70/100 V: 200 W (800 W peak) mono
Low impedance: 50 W (200 W peak) per channel stereo or 100 W (400 W peak) mono

Sensitivity (SPL / 1 W @ 1 m)
Per channel: 76 dB SPL (Mono: 79 dB SPL)

Maximum SPL @ 1 m
Per channel: 96 dB SPL (102 dB SPL peak)
Mono: 102 dB SPL (108 dB SPL peak)

Nominal Impedance
6 ? mono direct (transformer bypassed)


  • Retail stores
  • Restaurants and bars
  • Lobbies and conference rooms

Key Features

  • Low-frequency loudspeaker featuring one 5.25″ (133 mm) woofer that delivers deep, non-localized bass support down to 40 Hz without audible distortion. For flush, ceiling, pendant and wall-mount applications
  • Acoustimass speaker technology filters out audible distortion to deliver non-localized bass
  • Designed to work with the FreeSpace 3 flush and surface satellite speakers, or existing systems where additional bass reinforcement is desired
  • Module design allows parallel connection of multiple bass modules and can accommodate two or four FreeSpace 3 satellites per bass module
  • Plenum rated for use in air handling spaces (with optional plenum cover)
  • Selectable 70/100V or low impedance with transformer tap adjustment under speaker grille



Indoor use only

Multi-position screw-type barriers

Suspension / Mounting
Integral quick-install mounting features. Three mounting points at the rear of the housing for pendant mounting

Dimensions (Enclosure only)
Outer flange diameter: 15.4″ (391 mm)
Depth: 7.5″ (190 mm)
Ceiling hole diameter: 14.3″ (362 mm)

Net Weight
14 lb (6.4 kg)

Black, White, Paintable

Package Contents
1 loudspeaker

Additional information



Speaker Type

Ceiling, Bookshelf / Wall-Mounted, 100 Volt

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