Definitive Technology UIW Series RCS III In Ceiling Speaker

The UIW RCS III in-ceiling speakers elevate sound reproduction to new heights, delivering deep, dynamic bass and a smooth, natural roll-off for seamless integration with subwoofers. Designed with the same high-performance driver technology found in flagship floorstanding speakers, the Ultimate In-Wall (UIW) series offers true audiophile-grade sound from within your ceiling or walls.

At the core of the RCS III is a fully enclosed, sealed cabinet made from dense, acoustically inert, anti-resonant Medite® wood. This premium construction eliminates unwanted vibrations, ensuring accurate, uncolored midrange and tight, impactful bass—without buzzing or sound leakage into adjacent spaces.

The precision-engineered aluminum dome tweeter delivers crisp, clean highs that extend far beyond the range of human hearing. Its ultralight, rigid design allows for effortless high-frequency performance with zero distortion.

Whether you're working with new builds or retrofitting existing spaces—residential or commercial—UIW Reference Series speakers are designed for straightforward installation. Features like metal pivoting lock arms, paintable grilles and frames, and fully sealed enclosures make setup as easy as it is secure.

With the RCS III, experience flagship loudspeaker performance in an elegant, space-saving form—proving that incredible sound doesn’t have to be seen to be heard.