The Bose RMU105 is an ultra-compact, two-way loudspeaker designed as a foreground/fill or effects speaker within the Bose RoomMatch and RoomMatch Utility system architecture. Its small size and versatile mounting options make it ideal for applications requiring discreet placement and local coverage, such as under-balcony fills, front fills, center clusters, or surround effects in theaters, worship spaces, conference rooms, and performing arts venues. The speaker features a 5.25-inch low-frequency driver and a .75-inch high-frequency compression driver coupled to a wide-dispersion waveguide, delivering clear, articulate sound with consistent coverage over a broad area. Despite its compact dimensions, it is engineered to provide sufficient output and intelligibility for speech and music reinforcement in its designated zone.

The RMU105 is constructed with a rigid, injection-molded polypropylene enclosure that is both lightweight and acoustically inert. It includes multiple integrated mounting points, allowing for horizontal or vertical orientation as a surface-mount, flush-mount, or on an optional yoke. The speaker is designed for use with external Bose signal processing (such as a ControlSpace or PowerMatch DSP amplifier) which provides precise tuning, alignment, and system integration to ensure seamless acoustic blending with larger RoomMatch array modules. Its design prioritizes aesthetic discretion and installation flexibility, with a paintable grille and low-profile form factor that minimizes visual impact.

As a utility component in a larger Bose system, the RMU105 extends coverage into areas that the main arrays cannot effectively reach, ensuring a uniform listening experience throughout the venue. Its combination of compact size, robust construction, and sonic performance makes it an essential tool for system integrators who need to address specific acoustic challenges without compromising on sound quality or system coherence.