Square adapter and square grille for the Sonance Professional Series PS-C83RT, PS-C83WRT, and PS-C63RTLP in-ceiling speakers. The adapter converts the round Pro Series ceiling cutout into a clean square aperture so the speaker can match the visual treatment of square downlights, HVAC return grilles, and ceiling-tile-aligned diffusers in commercial spaces where the architect or interior designer has specified square-only ceiling details.

The grille is finished in black and supports a one-step painting process to blend into finished ceilings. The legacy Sonance logo is removable, so installers can choose between a branded or unbranded ceiling finish per the project specification. Supplied as 5 pair per box.

The square adapter is typically specified during initial design rather than as a field swap: matching square downlights, HVAC grilles, and ceiling-tile-aligned diffusers to a round 8-inch speaker grille without the adapter creates visible inconsistency the architect or designer will reject during walkthrough. Order the matching color during the project specification phase to avoid bottlenecking the trim-out schedule.