Ti to v2?.....Hmmmm....
Let's see, if memory serves; when I "discovered" Axiom in 2000, it was just "Ti" but then in '01 the "SE" was added.
The "SE" stuck around for a couple years and then seemed to fade away without fanfare.(at least "I" managed to miss it!
It appears then, that a number of changes have happened to the M80s crossover over the last few years to make somewhat of a change to what they were back in...oh...I dunno...01 or 02 or so? So now, to warrant a new "Soundstage" group review, they are now v2
The above summary may not be totally accurate, but it's sorta what happened.