This is a full Magnum treatment.
For people who are not aware of Symphones Audio, this is how it works:
You send your own pair of Alessandro MS2 or Grado SR325is to Rhydon (owner of Symphones) in Canada. It costs $399 USD, and he will remove 4 parts: the inner chamber, the driver, the gimbal and the rod. He then put in his own manufactured parts and send it back to you.
I received this from Rhydon in Dec 2011, and haven't been using it much since then. Probaly...