So I've been getting ready to upgrade my stereo system. (Nothing like waiting till the last minute) I'm pretty set on Exile XM9 Wake Package with the Harpoon amp. I was thinking of also adding the zone controller with it, but then saw that wet sounds just came out with a new one as well. Does anyone have any major concerns of either one? Hook up compatability problems? Advantages, disadvantages?

I will also be running a 10" Memphis sub with its own dedicated amp.

Also, I can't seem to do a comparison of the XM7's and the XM9's on the Exile website. Can anyone give me the major differences besides size?