Quad Man, maybe it was the Q7 and not the lack of "burn-in" and the associated system htat made the Q7 lousy. Why would you assume that a "totally different system" would make them sound great. Maybe the Q7 was making that system sound bad!
When the Q7 is replaced in the lineup everyone will be saying "yeay, it was not that great, had problems with the upper mids and highs, and the bass was heavy and sluggish".
Watch and you'll see.