I have one of the Fractal Design Define models, don't recall each one. Sits under the table, I don't hear it in a pretty quiet environment.
But, I think the case only plays a smaller role compared to the rest of the components; I chose specifically things that are known to be quiet. The CPU fan, the source (which does have a fan but doesn't kick in that quickly and has no coil whine), a GPU with a single fan, the working drives are SSD only.