I was not there for the whole show David (dc) was there for the full 3 days.
What I did notice in my short and hurried visit was that the Gauder AVM system sounded plugged up and dead with poor resolution on the reel to reel which was playing classic rock and when I returned to the room they were playing a CD with jazz and more acoustic tracks and the system sounded much, much, better.
Although the AVM amplifiers produced 500? watts per side the system never produced the kind of bass I like which is open, fast, seamless, and deep. Both the Berlin and Ayon speakers did a much better job of this in my opinion.
So, as for the reviewers??