My experience has proven more often then not that metal dome sounds great at reproducing cymbols, bells etc. but silk dome is better with the human voice and is less likely to accentuate sibilance. Since most music comes from CD players and they have a brittle sound already, silk domes and tubes help the sound more natural. You will give up some of the sizzle so personal taste rules as always.
Metal or Fabric Dome tweeter
I am looking at many different speakers and notice there are different opinions as to which is better. Any comments would be appreciated.