Amazing cable upgrade, perfect for any IEM on the brighter side. Increases sound space and depth, gives a bit of warmth for IEMs with subdued low end. It also retains most of treble details and smooths them out so less than perfect recordings (or compressed music) improves in sound. This cable is able to turn some of the flatter reference IEMs much more musical.
This cable is not designed to pair with naturally warmer IEMs, it will emphasize too much lower end frequencies and will end up sounding too dark. With the right pairing it is an amazing cable for what it does at these prices. (Personal setup with the cable: EE Zeus XIV on Lotoo Paw 6000, unfortunately Zeus is too sensitive and this cable will not increase impedance to be used with noisier sources such as Hiby R6 Pro..)