With the crossover at 3kHz as Almarg stated, I think what you are hearing is normal. I had a pair of Paradigm Studio 60s that experienced a tweeter failure, the dome disintegrated. When I replaced it I first listened to the tweeter separately as you are doing and heard what you described. I compared it to the good speaker's tweeter as I was concerned.
You could measure the resistance of the tweeter and see if there is any difference between speakers. If there is a difference then there may be an issue with the crossover, but as you say both sound the same I doubt it. As for break in, not the issue here.
The real question is, how do the speakers sound when being played normally? I think you purchased an extra set of tweeters.
You could measure the resistance of the tweeter and see if there is any difference between speakers. If there is a difference then there may be an issue with the crossover, but as you say both sound the same I doubt it. As for break in, not the issue here.
The real question is, how do the speakers sound when being played normally? I think you purchased an extra set of tweeters.