Well yes I realize he has a whole list of things, some bigger than others, and some of which are the same as those found in the HDT-1. But the AM deemphasis tops the list for the 1X, and I can't figure out why that was changed from the HDT-1 as it seems like a step backwards.
Also as I mentioned
in the "Initial Obeservations" thread, one of the first things I noticed was that the frequency response of analog FM sounded rolled off. Brian's FM deemphasis measurement seems to confirm that. Hmm, it seems that while the 1X added some nice new features, the actual tuner performance was better in the HDT-1 in several respects.