I am very familiar with the Mahl;ers as well as the other speaker you mentioned. You might want to look at the loudspeakers we make. They have sealed woofers and are adjustable in the bass and tweeter for any room. The frequency range, in-room, is 7Hz - 60kHz or so. I will let the Evolution Acoustics owners tell you how they compare with the others you are considering. Also, take a look at the show reports.
Good Luck!
Jonathan Tinn
Evolution Acoustics
Good Luck!
Jonathan Tinn
Evolution Acoustics