My silver HD650 sounds less-dark than the previous iteration, but still a bit dark.
Don't really agree on the K701 sounding fuller and more refined than the SRH1840, at least not the SRH1840 and K701 I have. I'd put the SRH1840 and the T1 on the same level personally, despite their differences. The SRH1440 sounds like an open SRH940 to me more or less; I'm not particularly fond of either.
Pretty much agree with the comments on the LCD-3 being a total failphone. I don't find the HE6 soft in the low-end when driven by the B22.
I think the HE-400 is great too.