a belated congrats on getting yourself an SDS-XLR Hirsch.

wanted to answer mikeg's question first for some reason.

I've moved back home for the moment, and all my stuff is still pretty much packed. hopefully I'll have most of the gear set up for comparisons soon. I've been trying to do a comparison since I got my SDS-XLR a month ago, but with the end of school and finals, along with having to move out of my apartment shortly after that, I didn't have the time. my dynamite isn't built yet (haven't started actually, hopefully will be a summer project that I'll finish in the next few months) so I'll have to find a way to get with Scrith so the dynamite can join the SDS-XLR / balanced reference / blockhead comparison (using balanced Qualia 010 and HD650 for cans). I also have a Blue Hawaii & HE90 so that will also be included.
my SDS-XLR is heavily upgraded and also has a setting tuned for the Qualia 010 specifically. Hirsch, you really should consider upgrading your amp.

I think they are worth it.