Square adapter and square grille for the Sonance Professional Series PS-C43RT and PS-C41RT 4-inch 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 white and supports a one-step painting process to blend into finished ceilings. The updated removable logo badge can be concealed when an unbranded ceiling finish is required by the project specification. Supplied as 1 pair.

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 speaker grille without the adapter creates visible inconsistency the architect or designer will reject during walkthrough. Order the matching color (black or white) during the project specification phase to avoid bottlenecking the trim-out schedule.