Yamaha NS-IW660 Main / Stereo Speaker

These were easy to install (I had pre-wired when I built the house, so that makes it significantly easier), and they sound great to me. They do an OK job of blending into the wall, though the speakers are on the large side for in-walls, and the grill has a small but noticeable profile. If you really want something that is hard to notice, you might want to go with something smaller and with a flatter grill.

Please note that my overall rating below reflects the fact that I only paid $126 for the pair. Thus I am very happy with the sound quality for the price. If I'd paid significantly more, my expectations would be higher and I might have rated these only average.