I'm sure you already have the V2. The changes were implemented in 03.
There have been multiple changes as Ken mentioned between the Ti and the current V2 rev. The tweeters are different (two revs since the Ti) and the X-over. I’m not sure about the mid range or base drivers. I plan to swap out all of mine to the latest version sometime this year. Mine were purchase in 04. I was curious about this and spoke to some Axiom folks to get the details.