This is what Alan has to say about the two different sounds to the Axiom family of speakers.
"All Axiom speakers now use identical tweeters, a 1-inch titanium dome
with a 1-inch voice coil.
But in 2-way speakers like the M3ti and M22ti, the woofer also carries
a good portion of the midrange content. The M22ti and M2i use a
different woofer (the 5.25-inch, two of them), whereas the M3ti has a 6.5-inch
woofer as well as a different crossover frequency. So the crossover is
different, and the 6.5-inch woofer rolls off faster (it doesn't have as
much midrange output as the 5.25-inch drivers in the M22ti and M2i).
Subjectively, it's the slight depression in output in the 500 Hz to
2kHz region that makes the M3ti sound a little more recessed and
laid-back. That's why the other 2-way Axioms (M40 and M50) have the same
"family" tonal balance. Likewise the M2, M22, M60 and M80 have very similar
clarity and detail because they use identical 5.25-inch midrange drivers."
Hope this helps.
