While Jeffreybehr makes a valid point regarding a possible hump in the FR between 100-300Hz (that could be even "lumpy" for some people) or alternatively a notch in the 2-6kHz region, IME the term "warm" is usually used in a positive vein:
the sound is full "enough" -- i.e. there's sufficient energy but not more than necessary -- in that region.
Mind you, one person's "warm" could be the next person's "lumpy" ESPECIALLY relative to the spl at which this comment is being made: at low spl our ears are less sensitive at 100Hz than they are at 3kHz!
the sound is full "enough" -- i.e. there's sufficient energy but not more than necessary -- in that region.
Mind you, one person's "warm" could be the next person's "lumpy" ESPECIALLY relative to the spl at which this comment is being made: at low spl our ears are less sensitive at 100Hz than they are at 3kHz!