OK, The Bry, this is the deal. You have a total of 12, not 11, with the HK system in the 330 Ci.......2 in each door (2 lower and 2 upper), 1 in each side panel in back seat (little ones), 2 in each speaker enclosure in the rear parcel shelf (outer area of shelf) and 2 subs (center area of shelf)......thats 4 + 2 + 4 + 2 = 12......
Now I don't know the frequency response of all of them, does anyone have that info?