The original M80s croosver was reworked back in 2002-2003 and the newer tests that have been done prove it does not get anywhere near 1.5ohm.

For that kind of money you might as well get the A1400-2 that is now looking like it will be in production soon.

Jason
M80 v2
VP160 v3
QS8 v2
PB13 Ultra
Denon 3808
Samsung 85" Q70