Clearmastering is the place to be in The Netherlands, if you like to have your music sound detailed, full of energy, open and fat, yet with a very powerful and controlled but dynamic low end. Their Mastering Engineer Errol Lem is one of the few in NL who really gets the job done, with great results. The only one from NL who is mentioned in the book 'Mastering Audio' of world renowned mastering engineer Bob Katz. Clearmastering is also a very affordable mastering facility. Plus they teach Mastering Courses, for different levels.