Bose Professional FreeSpace 3 Series II Acoustimass Subwoofer Module (White)

Overview

The Bose 843090-0210 is a FreeSpace 3 Series II Acoustimass subwoofer module designed to deliver clean and deep bass for commercial audio systems. Featuring a 5.25-inch woofer that extends frequency response down to 40 Hz with minimal distortion, it enhances both foreground and background music with full and balanced sound even at lower volumes. Its versatile mounting options and plenum rating make it suitable for a variety of indoor environments such as retail stores, restaurants, hotel lobbies, and conference rooms.

Key features

• 5.25-inch woofer provides bass extension down to 40 Hz, ensuring rich low-frequency sound without audible distortion
• Multiple mounting options including ceiling, wall, pendant, or flush installation allow discreet placement that preserves sightlines
• Seamless integration with Bose FreeSpace 3 satellite speakers for a modular and scalable audio system
• Supports both 70/100 V and low-impedance wiring with an accessible tap selector for easy output matching after installation
• Plenum rated for safe installation in air-handling spaces, offering flexibility to meet local building codes
• Capability to connect multiple bass modules in parallel to increase output and broaden low-frequency coverage in larger spaces
• White finish designed to blend into indoor commercial interiors without drawing attention

Key specs

• Woofer size: 5.25 inches
• Frequency response: down to 40 Hz
• Wiring options: 70/100 V or low-impedance
• Mounting options: ceiling, wall, pendant, flush
• Plenum rating: suitable for air-handling spaces
• Finish: white

Connectivity and compatibility

This subwoofer module is designed to work specifically with Bose FreeSpace 3 satellite speakers, creating a cohesive and flexible sound system. The unit’s wiring supports both high-impedance (70/100 V) and low-impedance configurations, allowing it to fit into a wide range of commercial audio setups. The tap selector under the grille makes it easy for installers to adjust output levels to suit the acoustics of the room after mounting.

Installation and setup

The module’s versatile mounting options provide installers with multiple ways to integrate it discreetly into commercial spaces. Whether recessed in a wall, mounted flush, suspended as a pendant, or installed in a ceiling, it maintains a low profile while delivering powerful bass. Its plenum rating also permits installation in air-handling spaces, which helps meet building codes requiring concealed wiring. The ability to connect multiple modules in parallel supports larger venues needing enhanced bass coverage.

Ideal uses and environments

This subwoofer module fits well in commercial interiors where quality bass is essential but speaker visibility should be minimal. It works effectively in retail stores, restaurants, hotel lobbies, and conference rooms, providing impactful lows for music and voice reinforcement without drawing attention to the hardware. The non-localized bass ensures listeners experience fullness and warmth in the sound, enhancing the atmosphere without distracting from conversations or activities.