The problem I have with high-end in-walls is that they are commonly used for background sound and at very low volume levels. As a custom installer for about the last 10 yrs, I have used almost every brand you can think of. I have found that most entry level models are virtually identical (many look as though they are built in the same factory) with the mid-line offering some sonic improvements. The top end can sound surprisingly good (my 2 favorites are B&W and MB Quart) My advice to you is to figure out what your usage is first, and then make sure you don't spend a wad of cash for speakers you will never really 'listen' to.