Right, I'm back from the Graham Slee Roadshow. I did compare my HD540II to their HD800 through the Bitzie DAC/amp and from the Solo ULDE. The HD540II and HD800 are pretty much neck and neck. They are very close indeed. My initial conclusions have been that the HD800 is slightly more spatial than my HD540II, probably due to more empty space within the HD800 earcups. It wasn't a huge difference but it was noticeable. They are both very neutral headphones IMO and the frequency balance between them was pretty much on par. For me, the HD540II sounds more natural whilst the HD800 was more spatial. I did not have enough listening time however to make entirely valid conclusions so these are just my initial impressions. Both seem great.
I compared both to the LCD-2 and they both beat it IMO. I was very underwhelmed with the LCD-2. The construction of it is big and heavy and it seemed to have some bass elevation too. The bass isn't boomy or unpleasant but the sound seemed less transparent to my ears. Slightly thickened up and covering up nuance definition. Those are my initial impressions. I liked the Denon D7000 much more than the LCD-2 and the Denons are a sealed headphone. The Denons, IMO, had a tad more bass than what I would consider neutral but they are still very well balanced and I think I may prefer them to the Sennheiser HD250II. Not sure...
I did have one of my HD560 Ovation II headphones at the event too. They certainly held their own as well; very neutral. HD600 and HD650 were there too (not mine) but I had a brief listen to both. First time I'd heard the HD650 but they're nothing impressive IMO. Not enough clarity.
Edited by o0CosmoMemory0o - 5/30/14 at 11:02am