We have a pair of 4412As here and find them quite good. As regards the frequency profile, tests with the pink noise gen and spectrum analyser in our control room show them to be pretty flat throughout the critical listening area - we're not seeing (or hearing) the smiley face curve that steve experienced. Slight dip (of the order of 2db) in the vicinity of 1k is all. As per the analyser, we're getting low end smooth down to 30hz and below before roll-off.
Obviously the above results reflect both the room and the speakers, so in a different space they may produce a less satisfactory result. But there is no harsh or splashy high end nor boomy lows here.