Old graphenes.
Which review? This one? Old graphenes:
https://www.head-fi.org/showcase/nicehck-diy-graphene.22565/
Or this one? New graphenes (your review):
https://www.head-fi.org/showcase/nicehck-diy-mx760-graphene-10-22000hz.22777/
i dont own the old ones as i not sure how they sound like ... if the price is an indicator than u better off getting the older ones ..