This was the second of these I had to replace in around 4 years of having the HK Lucas system. Only ever had vocals put through it so a little surprising that 2 should fail, both in the same speaker, which may be a clue to issues elsewhere?
As usual with Thomann, it arrived well packed and was easy enough to remove the speaker grill, unscrew the screws holding the faulty tweeter and install the new one with press-on connectors.
Given its small size, on both occasions that the tweeter failed, it was immediately noticeable there was something wrong, these active speakers do rely on all the components operating properly.
Great price at the time from what I remember, couldn't have got it cheaper in the Uk