Heard but Not Seen – Experience the Difference In-Ceiling Speakers and In-Wall Speakers Make If you’re looking to add in-ceiling or in-wall speakers to your living room, home theater, bedroom, kitchen or other area, now is a great time to buy. The audio technology behind in-wall and in-ceiling speakers is better than ever, and you’ll love (and be amazed) at how discreet in-wall and in-ceiling speakers are and how much extra space they add to rooms. Customers love OSD Audio’s ACE (Architectural Ceiling Element) Series in-ceiling/in-wall speakers. What makes these speakers so popular is not only the amazing audio quality, but the fact they are virtually invisible thanks to micro-trim grills. Once installed, the trimless speakers simply and elegantly integrate into any interior, and paintable grilles create an even more stealthy appearance.