There's another thread which criticises the Meridian system in the Evoque from a self-proclaimed "expert" who doesn't go into much detail at all as to why he thinks the system is below par. Even more numerous than the army of armchair car designers are the geeks who think they can do better when it comes to audio equipment design - I've been there, designed audio equipment in the past only to be told by people, usually with beards, how I've got it All Wrong.
Here is a PDF file you can download which describes the Meridian system which I think provides more information than the ramblings of the other thread.
http://www.mediafire.com/?i9a707a9tyw7y6d