Alex, I have good and bad news. I have the 1560 and it is a wonderful case. I can fit three Bb trumpets (Bach and Lawler) in there with no problems. However, I just bought that Eclipse Medium Classic and it will not fit in the case. It is too long by around a half inch. The Eclipse C trumpet may fit if it is shorter, but I wouldn't plan on the Bbs fitting if they are the same general dimensions as my Medium Classic. The only way I can see my Eclipse fitting in my case would be diagonally by itself, which would be a huge case for only one horn. If you can make it work the case is bombproof and a great value.