Hey Flyfish, there are a lot of opinions on premium audio throughout the forum. You should check out this outstanding thread: http://www.m3post.com/forums/showthread.php?t=137825
There is a load of information about how to tune the system and what it is capable of.
If you are looking for other discussions, go to google and type this in the search bar: "site:m3post.com enhanced premium sound" (don't type the quotes).
Enjoy your system!