depends on your definition of unlocked... the xp2200 and up are "unlocked" as in the L1s are connected (they may not appear to be but they are, under the surface of the chip). That will alllow you to access any multiplier from 13x and up, most people around here want the lower multipliers though.
As dew042 said all you have to do is connect the 5th L3 (the one on the right) by going around the pit with your defogger paint or whatever you use, that will allow you to use the lower multipliers (5.5x to 12.5x).
So technically the answer is yes they are unlocked but for the xp2200 at least you will want to connect the 5th L3 to access lower multis.