Hi Haoleb,
Interesting going over the earlier threads. If you are ever in a position with your new job to do an A/B comparison (preferably blind) with an instantaneous switcher between the new M80s (the ones for your parents) and the Paradigm 100s, I expect you'll hear slight differences in tonal balance--the M80s will have somewhat more midrange and upper octave detail than the Paradigms, and the Paradigms will have a somewhat boosted 3-dB lift of bass in the 80-Hz to 150 Hz region. Other than that, I suspect you'll find them comparably good, and you may have preferences one way or the other, depending on what music you're listening to.
The reason I suggest you use the new M80s is that there were tiny changes in the M80s' crossover made three or more years ago--extremely subtle but audible--that improved the midrange linearity and neutrality, which is one of the reasons we decided to give the "v2" designation to the M80s as well as the other Axioms that had slight changes introduced.
