Added before your drywall is installed, this fire rated backbox is used to reduce sound transmission between floors in your home. As an example, very useful if you tend to have parties in the kitchen when the baby's room is one floor above. Compatible with all CI300 and CI600 in-ceiling models. Must be used with a matching PreMountKit. See below for more information.

Protect your S1 Pro system while on the go with the S1 Slip cover. This custom-fit cover easily slips onto your S1 Pro, providing scratch protection while carrying, traveling in a car or just storing. Made from durable nylon, it features an embroidered front Bose logo and a top opening for accessing the S1 Pro carry handle for effortless transport.

Ensure consistent audio performance and reduce sound transfer with the Sonance Medium Round Retrofit Enclosure, designed for select 6.5" in-ceiling speakers. Ideal for retrofit installations, this enclosure creates a defined acoustic chamber above the ceiling, helping to isolate audio between rooms. Crafted from glass-reinforced polypropylene and optimized for Sonance MAG Series speakers, this retrofit speaker enclosure installs easily from below the ceiling. No attic access required. It fits cleanly between joists and features molded side flanges for stable positioning during installation, while also protecting the back of the speaker from dust, debris, and insulation. Perfect for finished ceilings or remodel applications. Whether you're upgrading a media room or outfitting a whole home sound system, this 2-pack of ceiling speaker accessories provides the performance consistency and installation flexibility that professionals rely on.