FYI, I tried HD DVE last night with my XA1 running v2.0 firmware directly into my JVC HD1.

The Tosh was outputting 4:2:2 YCbCr over HDMI and there was no BTB crush. Viewing the colour gamut test pattern through the filters the colours looked consistent in the Rec 709 pattern and not in the Rec 601 pattern (although there were clearly some colour decoder issues in the JVC that I will want to correct with a VP).

In the restaurant scene 601/709 side-by-side, you could see that some of the colours in the 601 image didn't look natural, but I reckon that an untrained eye would have a hard time spotting the issues without a side-by-side. If you know what you're looking for then sure, but this 601/709 stuff is still pretty new for most of us.

I will probably upgrade the XA1 to 2.2 this weekend and check again.

Roon Developer and ex-moderator of this Forum
I am #25 in the HH1 photo of fame.