Speaking of the H word, for the first time with my ABM600 I was distinctly unimpressed last night. 600 EVO IV in to Barefaced 610. Was a largeish village hall, with a good proper stage. I found I had to get the ABM to the three quarters volume position and reallly up the bass eq to make any impact in the hall and even then, there was no heft, was very thin and tinny. I probably found the absolute limitations of this rig volume and heft wise before needing the support of the PA, so raher disappointed. Need a good gig with this now to restore my faith in it.