01-01-12: Polk432I have to disagree with this statement regarding the time of burn-in. It may be true with some brands but I have survived 3 pair of Dynaudio C1 burn-in. My first pair I was not happy with the finish and after 450 hrs Dynaudio got me replacements. The 3rd pair was upgrading from the originals to the Signatures. Out of the box they are 90% of burned in ones BUT between 100 and 200 hrs they were just horrible. Honky/shouty mids - muddy lows and extremely bright highs. At around 350hrs they settled down and are doing my ears good :). That being said when I got the Signatures I borrowed my son's 'lesser resolving system' after 50hrs because I could blame the horrible sound time on that (hehe)
You may as well just play them. Always make the dealer burn them in first so you can hear them at their best, otherwise they probably already do, and the dealer made an easy sale. There is too much bullshit regarding speaker and wire burn in. 24 hours is enough. You will only THINK they sound better by waiting. I've had dealers mad at me for having them take the time to burn the speakers in, so that way they had no excuses if I didn't like the sound. My money is worth more that their time...because.... it is money that has been worked for and saved in advance. Not money they haven't earned yet, so don't let the dealer tell you you're wasting his time. That's what they're there for. Just play the speakers. No need to run pink noise or run one speaker out of phase. If they do not sound good after 24 hours, (I don't care how expensive they are) they will do your ears no good. Happy listening
If you are impatient like me go for 7/24 otherwise just listen.