Deixo aqui um post do headfi. Pode ser que te ajude a decidir.
They are both built by Takstar and I presume they use the same drivers (it just makes sense from a mass production perspective :-) but have different sound signatures. The Cloud's sound signature is slightly more bassy with recessed mids and highs compared to the Pros. The pads on the Clouds are different than the Pros, and I believe that had the effect on the sound. The Pro 80 has a more balanced or neutral presentation.
Also don't forget that the Cloud has a detachable mic built into it, so the inner acoustic construction is not exactly the same, so it will affect the sound somewhat. Though I think the pads make most of the difference.