Archetype Misha Mansoor Noise

[DiffractionCircuit]

A thread came up a month ago with a similar complaint. Give it a look and see if the suggestions there help you out at all:

[HELP] Strange High-Pitched Noise When Playing 7th String Palm Mutes on QC

I listened to the sound clip and it sounds exactly like string noise behind the nut. Try wrapping a piece of foam or cloth around them and see if the noise goes away. You can get a fancy FretWrap and place it behind the nut. As a Floyd Rose user, I can confirm that spring noise is also a thing. If you’ve got trem systems on your guitars, it’s a good idea to put some foam in the rear cavity to cut down on spring vibrations. Floyd Rose also makes a type of coated spring which helps out some. A …