Hmm, maybe I'm using different terminology than you are, but when I think 'warm' that tends to make me think of a rather smoothed treble response instead of a resolving one.
For resolution without harshness it's hard to beat Revel, especially the new Be series, though I'd call them neutral and not warm.
When I think 'warm' I think the original Elac Debut series, Wharfedale's Diamond line, or the new JBL L100 Classics - a forgiving slightly 'old school' sound that gives up detail and emphasizes the midbass.
Dynaudio and B&W may be worth looking into for you, I'd consider them to be on the warmer side of neutral.