Seems like I have contributed to three or four threads about Mahlers in the past week.
If you want to learn about the Mahlers, I suggest you go to the website of Vienna Acoustics' U.S. distributor, Sumiko, and read the Anthony Cordesman review for Audio and Robert Deutsch review for Stereophile (www.sumikoaudio.net). I have owned Mahlers since early 2001 and find those two reviews to be pretty accurate based upon my own experience with the speakers.
I would add that they must be used in a big room, with a high-current solid-state amp (preferably using bi-polar output transistors for maximum speed) and very careful choice of speaker cables. Of the amps he tried, Cordesman found they worked best with a 350 watt Krell amp.
I really like the Mahlers, preferring them in a lot of ways to my Revel Salons.