I personally haven't heard any of these speakers although I do own the M80s and I cannot say enough good things about them. I am addicted to listening through the M80s. Apparently the M60s sound very similar.
What I've heard about PSBs in general, is that they are not very detailed. If this is true, I would be concerned about PSBs for music. The other thing is the sensitivity. The PSB website specified the sensitivity with a 1W, 2.83V input. Since the speaker is 6 Ohms nominal, the signal used for the test can't simultaneously be 1W and 2.83V. It has to be one or the other. And if it is 2.83V, then the power is 1.3W and not 1W. So I would find out from PSB about this.
With regard to Mirage, it sounds like they have "copied" the 1980 Bose architecture. My Bose 601 Series IIs had an upward-firing midrange with a 4-tweeter arrangement that Bose called "The Free Space Array". The idea was to create direct and reflected sound to simulate a speaker with low directivity and hence a more natural sound. I spent years experimenting with location and toe-in/out in order to get the best possible sound out of my 601s. I finally achieved what I thought was a good soundstage. But then when I received my M80s, I realized that soundstage also includes height and depth
. I could never get height and depth from the 601s no matter what I did. And the instruments were always localized between the speakers. The M80s changed all that.
Good luck with your search and please let us know what you ended up going with and how it sounds.
