What are you using when breaking in a cable or component? Among others, I recommend XLO/Reference Recording "Test & Burn-In CD" (RX1000). In addition to a 15 minute System Burn-In track, there are demagnetizing tracks and several excellent Reference Recording music tracks. I think I have bought four RR CDs specifically because of these samples. Of course, you would not want to listen to the burn-in track. It is obnoxious. Could be used, however to tick off the neighbors when you are out of town. Do this at your own risk.