Ken,
My AE cabs definately sounded a little rougher up top than my HT/ER stack, I personally think the HT/ER tweeter sits very nicely, but politely in the mix.
Ian
+1 Of course, depends on the mix we are talking about. I guess that is why Jim makes these differently voiced cabs. Again, massive shame that the amazing AE's are no longer offered IMO.
And, with a bit of low mid bump at around 100hz or so, I can at somewhat emulate that upper bass/low mid fatness of the HT112ER.