Now these single DD semi/open back IEM’s graph like they’re on crack, but after some review checking they seem to perform some what better than the graphs suggest, these are deffo niche when it comes to IEM’s being so open, this probably negates them for an IEM’s primary use OTG but on the flip side apparently offer more of a HP or speaker sonic experience giving a much wider soundstage and layering…I’m guessing this set is not for everyone but one thing I do know is they’re best looking IEM produced for a longtime 
