The Bose FreeSpace 3 Series I Acoustimass Module is designed to provide flush-mount or surface mount bass augmentation for new and existing background music systems. It features one 5.25" (133 mm) woofer that delivers deep bass down to 40 Hz without audible distortion.
 
The Features
- Subwoofer/satellite systems that deliver high fidelity and extended- bandwidth reproduction of voice and music for a wide range of installed applications, including retail, restaurant and hospitality operations
- Modular design supports the flexibility for use of 2 or 4 satellites per Acoustimass bass module, and parallel connection of bass modules
- Mix and match surface-mount and flush-mount components to work with different room decors and layouts for a variety of applications