Jeffreybehr, I must commend you on your posts. You have been able to offer very good advice, and to the point.
That being said, I have been around this speaker enough to know that the treble is not bright. In my opinion, while I do agree with padding down a hot tweeter, the Dynaudio Esotar is definitely not hot, nor is the crossover of the Andra I. Rather, I think there must be something else in the system - room, amplification, source, or cabling which is causing the issue. If I were in this situation, I would leave the crossover alone, and look into what is actually the source of your more than valid complaint.
That being said, I have been around this speaker enough to know that the treble is not bright. In my opinion, while I do agree with padding down a hot tweeter, the Dynaudio Esotar is definitely not hot, nor is the crossover of the Andra I. Rather, I think there must be something else in the system - room, amplification, source, or cabling which is causing the issue. If I were in this situation, I would leave the crossover alone, and look into what is actually the source of your more than valid complaint.