Architectural Ceiling Element (ACE) Series in-ceiling speakers combine elegant, modern style with outstanding audio performance. With 120W power handling, the ACE 540 includes a 5¼-Inch mica-filled polypropylene woofer and ¾-Inch pivoting silk soft dome tweeter. Micro flange grilles have a thin (0.15-Inch) trim, giving the ACE speakers a clean and sleek appearance that seamlessly integrates into any design space.