According to Shurelia, this item can't be made through Grathmelding because of being a piece of lost technology from the First Era. It's an emitter that accelerates the movement of energy inside a piece of matter, increasing its Dynamic D-Wave activity, and thus it increases the sound energy in said piece of matter.
Trivia[]
This item is also featured in Cross Edge as a synthesis material, although it was renamed to "Photon Oscilloscope" in there.