Here is a brief update. I finally placed the parts order with Danny for my 2nd H-frame. Received them all last week and this past weekend I got it all assmebled, so..... it is up and running
Right away, there were a couple things very apparent 1. significantly more "wieght" behind the bass , 2. An increase in both the depth and width of my sound stage, this I was not expecting at all. I shot Danny a mail about this and he said he has had similar experiences, he suggested playing around with the dampening settings as they can have an effect on the size of he stage (I'm trying the low setting out now Danny).
I know bass is supposed to be omni directional but adding the 2nd H-frame definitly seems to be creating more movement in the reproduction, you really notice a drummer going from one side to the other now. This was present before but not to the same deree.
I listened quite late on Saturday night and didn't seem to notice much difference comapred to the single H-frame at low volumes but, listening late again last night ( the subs now has some time on it) I'd have to say there is even more behind the bass at low levels. Guess the bass just seems more dynamic with more ooomph
As I mentioned to Danny, I'm finding the pair very impressive !!
Here's a couple of piccs, one without grills, one without