Just wanted to let you know there have been some good reports that Mackie has figured out some major issues with the HD series. I'm going to wait probably a good 6-8 months to call is official, but its looking good.
I can soon again start recommending the HD1531 as the best value powered speaker for $1000 or less. At almost $1000 on the dot, the HD1531 is a steal.
(Gets very loud and still sounds good when hitting the limiters, overall sound is excellent for a sub $2000 speaker and actually does do something very similair to the time domain correction found in the EAW Focusing ("Gunness Focusing"), the only downside is the weight.)