UE has added another custom to their line-up. This times, it is the vocal centric Vocal Reference Monitor for US$999. Though it is three drivers with three ways crossover, it is rolled off at both ends of the frequency response intentionally to push the vocal forward, mainly just for singer who want to listen to his/her own voice and nothing else (and there will be a male and a female version). I don't suppose this will catch up in the consumer market any time soon.