It's really funny to see all the discussions on how cables sound. There is no such thing as cable XYZ "sounds this or that". It depends on your system. 20 years of cable auditions also tell me that the most expensive cable is hardly the perfect choice. So try and find out and by all means don't buy cables based on rave reviews! And yes, burn in is necessary in any case. Kimber says that typically 200 hours in the system should bring you to 95%+ performance.