I've read some people reporting that the Art Pro VLA is missing some 1khz compared to other units. I don't really know if this is true, but on my monitors, (and they are good ones) on the mix buss samples, when the acoustic guitar comes in by itself, the sound is really trebly on the Art and Chameleon. Maybe they are so trebly that you can't hear the midrange as well. Even compared to the bypass mix they sound like they're missing some of the mids. You're probably right that they aren't missing midrange info. They're probably just a little bright in the top end. I hear big differences in all of them. Thanks for the samples, I know it took some time to set all of them up.
Bud
www.wasprecording.com