Burn in is real!!! I just experienced it with the Cambridge Audio Azur 640c CD player I just got. At first it sounded good but there wasn't any depth. After about two days running it continuiosly the sound was much improved. Bass tightened, treble improved and depth improved. And adding a better power cable helped too. The thing is.. I don't think break in is so dramatic that the overall character will change that much. If you don't like it at all.. Breaking it in won't help. The 950/755 combo was a bad match for my Axiom speakers. I returned it. Sorry. Now if they would sort out the charges for the missing cables I never got this audition will have only cost me a couple of hundred bucks. I do have a couple of cables to show for it.