Bose FreeSpace 3 Series II Acoustimass Module
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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
- Power Handling: 200 W RMS (70/100V), 50 W RMS/ch stereo or 100 W RMS mono
- Maximum SPL (1m): Mono: 108 dB peak / 102 dB continuous
- Sensitivity: 76 dB (per channel); 79 dB (mono)
- Impedance: 6 Ω (mono, direct)
- Material: PC/ABS housing, expanded metal grille
- Mounting Hardware: 4 mounting arms, 3 safety cable attachment points
- Dimensions: Diameter 15.4" × Depth 7.4" (391 × 189 mm)
- Cutout Diameter: 14.3" (362 mm)
- Weight: 14 lb (6.4 kg); Shipping Weight: 20 lb (9.1 kg)
- Warranty: 5-year limited
What's Included
- 1x Bose FreeSpace 3 Acoustimass Module
- 1x Mounting hardware
- 1x Installation guide
