Answering some questions about the DX Edition:
I asked to Justin around 9 months ago to write on my KGSS the "DX Edition" name in order to state their upgrades. Basically a DX Edition is a KGSS as maxed out as it can be.
The size was a big concern for me and I was looking for the smallest SS electrostat amp I could get. I asked to Justin if it would be possible to have the Blackgates placed in horizontal (they are not adding height if the power supply is placed vertical, saving several inches wide-wise). It might look compact but it's just a bit warm (almost cold) running 24/7, so it never runs hot. Unfortunately mine came with a Buzzz noise due to the transformer (Shipping issues for sure. Couriers are not careful) so I have to send it back to Justin (I should have sent it back months ago) but apart from that issue so easy to fix the amp is really good.
Here is a
link with pictures of mine and a list of the options added.