For the 6055, this depends on production date, pumps made since October should be extremely silent and this change is retrofittable to older pumps. They have progressively gotten quieter with minor design changes and now make virtually no noise on start up due to the new 6055.740 disk.
For the wavebox, without seeing it I am grasping at straws. No wave or surge device will ever be silent, splashing water and emptying and filling any sort of container will always make some noise and there is no way around this, I would need to know more about the noise to determine if it is normal or not, 6212 is an older model, they were made from 2004-2009 and there were two models of pump used with 3 versions of drive unit, so there are too many variables without having it here to examine and test or at least seeing some photos of the pump and having some sort of audio file of the noise.