I had trouble with the nozzle. It was the black one's but for the sake of the sound I m willing to try another one ( maybe a blue one that came out after)

I've got my fh1 two weeks ago from Amazon it and comparing to the EX1 that I bought two years ago, this sound amazing. Clearly an overall improvement regarding the sound. But today, after listening no more than 1-2 h/day, I wanted to change the silicone tips and one came off with the copper...