Yes, order the 3D printed ones. They work much better than the stock ones. If you really want to try and work with the original ones, take a look at my post HERE, about half way down, I've highlighted how I modified them... They worked okay but in the end, I bought the 3D printed ones.Well, we took the plunge. And documented some of it in the thread linked below.
The major issue we ran into was that the brackets that came with the head unit did not work. Should we go ahead and order the 3d printed ones? And what screws do those use?
Also, any advice for repairing or replacing an M Audio sub? One of ours has blown.
Sorry, can't help with the M Audio sub.