neko d-100-2 is very nice too... output transformer coupled, warm nature very easy to listen to, picked one up recently, quite impressed
as for units mentioned above:
rme adi2 is a really great dac but it is NOT warm... it is very good akm implementation - clean crisp tight focus revealing... not lean and strident but not warm
same for chord dacs - i have qutest, 2qute, mojo, soon to be adding an m scaler to qutest -- they are also not warm. the sound has body and foundation but there is startling clarity and detail... not warm side of neutral imo
