Bose FreeSpace 3 Series II Acoustimass Module
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Condition: New
Description
Bose FreeSpace 3 Series II Acoustimass Module
The Bose FreeSpace 3 Series II Acoustimass Module is a compact, high-performance bass module designed for both background and foreground music applications. With a 5.25" dual voice coil woofer and proprietary Acoustimass technology, this subwoofer provides deep, powerful bass down to 40 Hz with minimal distortion. Its versatile design enables flush-mount, ceiling, pendant, or in-wall installation—perfect for commercial environments like retail, hospitality, or office spaces.
Optimized for modular expansion, the Acoustimass module supports two or four FreeSpace 3 satellites per bass unit and features flexible transformer tap settings for 70V/100V or low-impedance systems. It’s also plenum-rated for air-handling space installation when used with the optional plenum cover.
Key Features
- Driver: 5.25" dual voice coil low-frequency woofer
- Frequency Range: 40 Hz – 315 Hz (–10 dB)
- Mounting Options: Flush-mount, pendant, wall, ceiling, or in-wall
- Modular Design: Supports up to 4 FreeSpace 3 satellite speakers
- Selectable Operation Modes: 70V/100V or low-impedance (6 ohms)
- Plenum Rated: Installable in air-handling spaces with optional plenum cover
Technical Specifications
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General
- Product Name: Bose FreeSpace 3 Series II Acoustimass Module
- Product Type: Subwoofer (Acoustimass module)
- Series: FreeSpace 3 Series II
- Configuration: Passive bass module
- Warranty: 5-year limited
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Performance
- Power Handling: 200 W RMS (70/100V), 50 W RMS/ch stereo, 100 W RMS mono
- Maximum SPL (1 m): 108 dB peak (mono), 102 dB continuous
- Sensitivity: 76 dB (per channel), 79 dB (mono)
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Electrical
- Impedance: 6 Ω (mono, direct)
- System Compatibility: 70V / 100V distributed audio systems
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Construction
- Material: PC/ABS housing with expanded metal grille
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Physical
- Dimensions: 15.4" diameter × 7.4" depth (391 × 189 mm)
- Cutout Diameter: 14.3" (362 mm)
- Weight: 14 lb (6.4 kg)
- Shipping Weight: 20 lb (9.1 kg)
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Installation
- Mounting Hardware: 4 mounting arms, 3 safety cable attachment points
- Mounting Type: Ceiling or concealed installation
- Application: Distributed commercial audio systems
- Use Case: Background music with low-frequency reinforcement
Installation / Use Cases
- Mounting Hardware: 4 mounting arms, 3 safety cable attachment points
- Mounting Type: Ceiling or concealed installation
- System Application: Distributed commercial audio systems
- Primary Use: Background music with low-frequency reinforcement
- Typical Environments: Retail stores, restaurants, hospitality spaces, offices, and commercial installations
- System Type: Distributed ceiling speaker systems with subwoofer support
What's Included
- 1x Bose FreeSpace 3 Acoustimass Module
- 1x Mounting hardware
- 1x Installation guide
Frequently Asked Questions
What is the Bose FreeSpace 3 Series II Acoustimass module used for?
The Bose FreeSpace 3 Series II Acoustimass module is a subwoofer designed to provide low-frequency support for distributed commercial audio systems such as restaurants, retail stores, and hospitality spaces.
Is the Bose FreeSpace 3 Series II a subwoofer?
Yes. The FreeSpace 3 Series II Acoustimass module functions as a subwoofer, delivering low-frequency performance to complement satellite speakers.
Can the Bose FreeSpace 3 Series II be used with ceiling speakers?
Yes. This module is designed to work with compatible Bose satellite speakers, including ceiling-mounted speakers, in distributed audio systems.
Where is the Bose FreeSpace 3 Series II typically installed?
It is commonly installed in ceilings or concealed spaces in commercial environments where low-frequency reinforcement is needed without visible large speakers.
Is the FreeSpace 3 Series II suitable for background music systems?
Yes. It is designed to enhance background music systems by adding bass response in commercial audio installations.
Does the Bose FreeSpace 3 Series II require an external amplifier?
Yes. The FreeSpace 3 Series II Acoustimass module is a passive subwoofer and requires an external amplifier to operate.
