Luis,
Mains speakers are largely mid- and far-throw boxes and, as such, compromises in driver spacing and selection that would be unnacceptable in a near-field speaker are often overlooked in favor of SPL. The long-lived 15"x2" combo that works poorly but acceptably in a mains application has, IMNSHO, no business being on stage where even frequency response is desired. The Adamson wedge sounds and reacts to feedback exactly like a box with a 15" LF driver and large-diaphragm HF driver crossed over fairly high.
It is fairly light and low profile, but I think they're trying to get too much out of one box by making it flyable, arrayable, and a monitor.
I like my wedges a little bright with a very tight mid-bass and gradual rolloff of the lows. They should sound slightly thin in a listening situation but cut well when there's lots of noise. Linearity off-axis is also important to me, but that's the case in any speaker. I usually then HPF them up to 200hz, +/- 50Hz.