I bought a pair of Mirage M1's in 1988 and they served me faithfully till last summer. The original
amps I used were 4B's that I had upgraded in 1989 to I guess 4B NRB. They were always used
in the bridged mode. In 2001 I upgraded the amps to 7B ST's.
The speakers IMO required a lot of amplifier to bring the music up to stun level. I always had
a spare tweeter & woofer on hand. In 20 years I went through a few of each but never had
a problem with the midrange or crossovers.
If the M1's are cheap enough I think you will be happy with the performance.
Regards