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

The Bose 843090-0210 is a FreeSpace 3 Series II Acoustimass subwoofer module that brings clean, deep bass to foreground and background music systems. It houses a 5.25-inch woofer that extends response down to 40 Hz without audible distortion, so music feels full and balanced even at lower volumes.

Designed for commercial interiors, the module blends easily into retail stores, restaurants, hotel lobbies, and conference rooms. Installers can mount it in a ceiling, suspend it as a pendant, recess it in a wall, or leave it flush, which helps keep sightlines clear while still delivering powerful bass. The plenum rating allows placement in air-handling spaces, giving contractors more flexibility when local code requires concealed wiring.

The FreeSpace 3 Series II system is modular, which means this bass module works alongside Bose FreeSpace 3 satellite speakers and can be wired in either 70/100 V or low-impedance configurations. A tap selector sits under the grille, so an installer can match the output to the room after the unit is mounted. When a venue needs higher output, multiple bass modules can be connected in parallel to share the load and broaden low-frequency coverage.

Owners appreciate that guests notice the music, not the speakers. Listeners enjoy impactful lows during upbeat playlists in a boutique, subtle warmth behind conversation in a café, or articulate bass underneath voice reinforcement in a meeting space. Because the sound is non-localized, patrons sense fullness without being drawn to the exact speaker location, keeping the focus on the experience instead of the hardware.

• 5.25-inch woofer delivers bass extension down to 40 Hz with minimal distortion
• Mounts in a ceiling, on a wall, as a pendant, or flush for discreet placement
• Works seamlessly with Bose FreeSpace 3 satellite speakers
• Accepts 70/100 V or low-impedance wiring with easy transformer tap adjustment
• Plenum rated for installation in air-handling spaces where codes permit
• Supports parallel connection of multiple modules to increase bass output
• White finish suited for indoor environments