Received the UE RM 3 days ago, the quality is good, the customers service was perfect and it's an overall good product. The audio is really precise, the ear 'fit' is great (you're always scared that it won't be super confortable since it's custom for you ears), and everything is nice except ... There are absolutely no sub frequencies ! For so called "reference monitors" I was expecting a real correct 20hz - 20khz frequency range, but you can say good bye to the bass ! I guess it's not a big issue for rock lovers but if you want to listen to...