ultimate best speakers ever- now under 15K

#1 world class winner top of the line. I have decided to upgrade my system not just a notch but all the way. I want a system that will bring me very close to the real thing whether its vocal or operatic or symphonic, I want to be able to hear the micro-details and subtle nuances, the placement of the musicians, and tonality among other things. So far the best that I have heard is the piegas c8 ltd. and dynaudio c4. I am willing to go as high as 15K for a used pair, but will first consider used ones at 7K-10K. I listen to opera mostly but I also listen to all other forms except rap. Serious contenders only please, i am interested in top grade.