i got the T2 5-1/4 components a few days ago put em in and noticed one tweeter was out..sent it back and today i found out my other tweeter is not working as well..i left the crossover at +2db for the the tweeter..and the gain on my amp is not even half way up..did they need to be broken in?..i have the T1 tweeters and havent had a problem with them so far...