One cannot recommend the Z1R over the HD800* or vice versa. It cannot be done.
That's the only reason I've kept these two annoying bastards this long. Both heavily flawed, both amazing. These two complement perfectly. I've been saying this since the Utopia rage days years ago. Juicy, luscious full body sound vs super precise, airy, sharp holographic positioned thin accuracy. How can you pick between a tasty juicy fat grass-fed ribeye and a delicate sashimi? [or whatever comparison suits your palate/ethics] - you cannot.
There's no one-in-all solution in earaudio. It's the only thing I've learned since I joined - which is a really bloody annoying conclusion for anyone looking for a conclusion... So the problem with this approach is that it requires the purchase of two units to use as one, which is considerably inconvenient, both in ergonomics and cost-wise.
I suppose that's why I'm still around looking for the perfect solution (many claimed to be it, but turned out to be flops). There's still hope... there's always something better just out there. Can't wait to hear the suggestions.
* meant the 800 and not 800S here. Bought both and prefer the 800 by far, with the bonus of being cheaper. 6 kHz is sweet to my ears - Not a popular opinion, so fine print.