I have deleted my first post so I don't further misinform the buying public.
I know nothing about Magico’s impedance curve, but generally I think the answer to that question is most audiophiles get turned on by hard to drive speakers for two reasons:
1 - The myth that a speaker that can make the the difference between two amps current capabilities apparent also means the speaker is more resolving of music. It isn’t.
2 - Bragging rights.
To be fair, it really is hard to get enough bass and sensitivity out of your average 2.5 way speaker without a low impedance point, so I can understand how some speaker designs just naturally push this requirement, but I also see some manufacturers who go this route and then discover it’s a selling point.
Apologies accepted. You could have heard the Magico M2, S3MkII,
A1, A3, Q5, Q7 or the S1MkII here at Brooks Berdan. We never have displayed the S5 however.
By the way Mark Levinson gear pairs very well with Magico. I would like to invite anyone interested to please come into the store for a listen.