Ribbon tweeters seem to be the new trend in active studio monitors as well. Supposedly they can have a very smooth, natural sound, as opposed to the harshness of some dome designs. Not sure about accuracy, but I can't imagine they would be any less accurate. Ribbon microphones are beautiful for capturing female vocals in the studio, so why not use similar technology for playback? As always, it's a matter of personal preference so let your ears be your guide.